JPS62298572A - Purification of 1alpha-hydroxyvitamin d3 - Google Patents

Purification of 1alpha-hydroxyvitamin d3

Info

Publication number
JPS62298572A
JPS62298572A JP14368686A JP14368686A JPS62298572A JP S62298572 A JPS62298572 A JP S62298572A JP 14368686 A JP14368686 A JP 14368686A JP 14368686 A JP14368686 A JP 14368686A JP S62298572 A JPS62298572 A JP S62298572A
Authority
JP
Japan
Prior art keywords
hydroxyvitamin
mixture
silyl ether
1alpha
formulas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14368686A
Other languages
Japanese (ja)
Inventor
Fumiaki Matsuura
文昭 松浦
Masahiro Kato
昌宏 加藤
Hirohito Shimizu
清水 裕仁
Tadao Michishita
道下 糾生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chugai Pharmaceutical Co Ltd
Original Assignee
Chugai Pharmaceutical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chugai Pharmaceutical Co Ltd filed Critical Chugai Pharmaceutical Co Ltd
Priority to JP14368686A priority Critical patent/JPS62298572A/en
Publication of JPS62298572A publication Critical patent/JPS62298572A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To easily improve the yield of the titled compound useful as a remedy for dysbolism of vitamin D, by using a specific chromatographic process in the separation of the titled compound from a mixture of silyl ether of 1alpha- hydroxyvitamin D3, silyl ether of 1beta-hydroxyvitamin D3, etc. CONSTITUTION:The objective compound can be produced by the chromatographic treatment of a mixture of silyl ether of 1alpha-hydroxyvitamin D3, silyl ether of 1beta-hydroxyvitamin D3 and/or silyl ether of 1alpha-hydroxy-5,6- trans-vitamin D3 of formula I, II or III [R1 and R2 are same or different group of formula IV (R3, R4 and R5 are same or different lower alkyl or aryl)] using chromatographic carrier composed mainly of a silica gel. The silylation of a mixture of 1alpha-hydroxyvitamin D3, etc., is carried out e.g. by reacting the mixture with a silylation agent in an inert solvent in the presence of a base.

Description

【発明の詳細な説明】 の1 本発明は医薬として有用な1α−ヒドロキシビタミンD
3の分離・精製法に関する。
Detailed Description of the Invention Part 1: The present invention provides 1α-hydroxyvitamin D useful as a medicine.
Regarding the separation and purification method of No. 3.

′ の ′・−1Bが  よJ−、F、、  −1α−
ヒドロキシビタミンD3はビタミンDの代謝異常に伴う
諸疾患の治療薬として有用な化合物である。この化合物
の合成法は近年多数知られている。例えば、コレステロ
ールを出発物質とする方法(特開昭48−82750号
、特開昭49−95956号)およびビタミンD3を出
発物質とする方法(特公表54−500080号)など
が代表的な合成法として挙げられる。しかしながらこれ
らの製法は、いずれも3β位に水酸基を有する化合物を
出発物質として、1α位に水酸基を導入する反応を用い
るため、1位の水酸基の配位の異なる1β−ヒドロキシ
ビタミンD3の副生が避けられない。また、1α−ヒド
ロキシビタミンD3のトリエン構造はシス体であるが反
応工程あるいは光または熱により、そのトリエン構造が
トランス体に異性化した1α−ヒドロキシ−5,6−ト
ランスビタミンD3が一部生成する。
′ of ′・−1B is J−, F,, −1α−
Hydroxyvitamin D3 is a compound useful as a therapeutic agent for various diseases associated with vitamin D metabolic abnormalities. Many methods for synthesizing this compound have been known in recent years. For example, typical synthetic methods include a method using cholesterol as a starting material (Japanese Patent Application Laid-open No. 48-82750, JP-A No. 49-95956) and a method using vitamin D3 as a starting material (Japanese Patent Publication No. 54-500080). It is mentioned as. However, all of these production methods use a compound having a hydroxyl group at the 3β position as a starting material and use a reaction to introduce a hydroxyl group at the 1α position, so the by-product of 1β-hydroxyvitamin D3 with a different coordination of the hydroxyl group at the 1st position is produced. Inevitable. In addition, the triene structure of 1α-hydroxyvitamin D3 is the cis form, but during the reaction process or by light or heat, the triene structure is isomerized to the trans form, resulting in a portion of 1α-hydroxy-5,6-trans vitamin D3. .

これらの化合物が最終目的化合物である1α−ヒドロキ
シビタミンD3に混入した場合、再結晶あるいはカラム
クロマトグラフィーという通常の精製手段で完全に除去
するには、煩雑な手段の繰返しを必要とするほかそれに
伴う大幅な収量の減少が避けられなかった。
If these compounds contaminate the final target compound, 1α-hydroxyvitamin D3, they cannot be completely removed by normal purification methods such as recrystallization or column chromatography, which requires repeated complicated steps and the associated A significant decrease in yield was inevitable.

本発明者はこれらの事情を鑑み鋭意研究した結果、一般
的に使用されるシリル化剤で水酸基をシリル化し、シリ
カゲルを主成分とする担体を用いたクロマトグラフィー
に付すことにより、これらの化合物が効率よく分離でき
ることを見い出し本発明に至った。
As a result of intensive research in view of these circumstances, the present inventor has found that these compounds can be silylated with a commonly used silylating agent and subjected to chromatography using a carrier mainly composed of silica gel. It was discovered that efficient separation can be achieved, leading to the present invention.

[式中R1およびR2は各々同一または異なって一般式
: 一8i −R4(式中R3,R4およびR5は各々同一
または異なって低級アルキル基またはアリール基を意味
する)で示される基である]で表される1α−ヒドロキ
シビタミンD3のシリルエーテル、1β−ヒドロキシビ
タミンD3のシリルエーテルおよび/または1α−ヒド
ロキシ−5,6−トランスビタミンD3のシリルエーテ
ルよりなる混合物をシリカゲル主成分とする担体を用い
たクロマトグラフィーに付しそれぞれの成分に分離せし
めることを特徴とする1α−ヒドロキシビタミンD3の
精製法に関する。
[In the formula, R1 and R2 are each the same or different and are a group represented by the general formula: -R4 (wherein R3, R4 and R5 are the same or different and each means a lower alkyl group or an aryl group)] Using a carrier mainly composed of silica gel, a mixture of 1α-hydroxyvitamin D3 silyl ether, 1β-hydroxyvitamin D3 silyl ether and/or 1α-hydroxy-5,6-transvitamin D3 silyl ether represented by The present invention relates to a method for purifying 1α-hydroxyvitamin D3, which is characterized by subjecting it to chromatography to separate it into its respective components.

本発明において、1α−ヒドロキシビタミン島。In the present invention, 1α-hydroxyvitamin islet.

1β−ヒドロキシビタミンD3および/または1α−ヒ
ドロキシ−5,8−トランスビタミンD3よりなる混合
物のシリル化は常法により、例えば不活性溶媒中、塩基
の存在下一般的に用いられるシリル化剤を反応せしめる
ことにより行われる。
The mixture consisting of 1β-hydroxyvitamin D3 and/or 1α-hydroxy-5,8-transvitamin D3 can be silylated by a conventional method, for example, by reacting a commonly used silylating agent in the presence of a base in an inert solvent. It is done by forcing.

一般式I、■および■におけるシリル基の代表的なもの
としては、例えばトリフェニルシリル基、トリメチルシ
リル基、トリエチルシリル基、ジメチルイソプロピルシ
リル基、t−ブチルメチルシリル基等が挙げられるか本
発明の方法を実施するのに最も好ましいシリル基として
はトリメチルシリル基である。
Typical examples of the silyl groups in general formulas I, (1) and (2) include triphenylsilyl group, trimethylsilyl group, triethylsilyl group, dimethylisopropylsilyl group, t-butylmethylsilyl group, etc. The most preferred silyl group for carrying out the process is trimethylsilyl.

このようにして、本発明の方法に付すシリル化混合物が
製造される。
In this way, a silylation mixture is produced which is subjected to the process of the invention.

本発明の方法において、クロマトグラフィーの方式は特
に限定されないが、高速液体クロマトグラフィー、カラ
ムクロマトグラフィー、分取用薄層クロマトグラフィー
等を必要に応じて適宜使用することができる。展開溶媒
は、例えばn−ヘキサン、塩化メチレン、ベンゼン、エ
ーテル等を単独あるいは適宜組合せて用いられるが、特
に限定されるものではない。
In the method of the present invention, the method of chromatography is not particularly limited, but high performance liquid chromatography, column chromatography, preparative thin layer chromatography, etc. can be used as appropriate as required. The developing solvent may be, for example, n-hexane, methylene chloride, benzene, ether, etc., used alone or in appropriate combinations, but is not particularly limited.

本発明の方法に従い分離した1α−ヒドロキシビタミン
D3のシリル化体から目的とする1α−ヒドロキシビタ
ミンD3への変換は常法により、例えばKOH−メタノ
ールにより行なうか、又は陽イオン変換樹脂と接触せし
めることにより容易に行われる。
Conversion of the silylated form of 1α-hydroxyvitamin D3 separated according to the method of the present invention to the target 1α-hydroxyvitamin D3 is carried out by a conventional method, for example, by using KOH-methanol, or by contacting it with a cation conversion resin. This is easily done by

次に実施例を挙げて本発明を更に具体的に説明するが、
本発明はこれらに限定されるものではない。なお実施例
中、N M Rは HNMRModelR−24B(日
立製作新製)、IRは270〜30形(日立製作新製)
を用いた。また純度測定は島原製作所製高速液クロ5C
L−6A型、昭和電工製ステンレスカラム6φX 15
0 mm15μシリカ充填、検出UV273mmにより
分析したピーク面積比である(シリル化体分析溶媒;n
−ヘキサン:塩化メチレン=96.5:3.5゜脱シリ
ル化体分析溶媒:n−ヘキサン:テトラヒドロフラン=
I3 : 4)。
Next, the present invention will be explained in more detail with reference to Examples.
The present invention is not limited to these. In the examples, NMR is HNMR Model R-24B (newly manufactured by Hitachi Seisakusho), and IR is 270-30 type (newly manufactured by Hitachi Seisakusho).
was used. In addition, purity measurement is performed using Shimabara Seisakusho's high-speed liquid chromatography 5C.
L-6A type, Showa Denko stainless steel column 6φX 15
This is the peak area ratio analyzed by 0 mm 15μ silica packing and detection UV 273 mm (silylated product analysis solvent; n
-Hexane: methylene chloride = 96.5:3.5° Desilylated product analysis solvent: n-hexane: tetrahydrofuran =
I3: 4).

実施例1゜ a)  1β−ヒドロキシビタミンD3(1β−0H−
D3 )および1α−ヒドロキシ−5,6−トランスビ
タミンD3 (1α−0H−)ランスD3)を各々0.
1g含む1α−ヒドロキシビタミンD3(1(2−OH
−D3 )1.0αg (2,49mmo l e)を
塩化メチレン58m1に溶解し、ヘキサメチルジシラザ
ン1.12rnl  (5,39mmo l e、塩化
トリメチルシラン0.86m1 (5,25mmo l
 e)を加え、30〜45分間加熱還流した。反応液を
冷却し、減圧上濃縮した後n−ヘキサン30m1を加え
不溶物を濾別した。
Example 1゜a) 1β-hydroxyvitamin D3 (1β-0H-
D3) and 1α-hydroxy-5,6-transvitamin D3 (1α-0H-)trans D3), respectively.
Contains 1g of 1α-hydroxyvitamin D3 (1(2-OH
-D3) 1.0αg (2,49 mmol e) was dissolved in 58 ml of methylene chloride, hexamethyldisilazane 1.12rnl (5,39 mmol e), trimethylsilane chloride 0.86 ml (5,25 mmol
e) was added and heated under reflux for 30 to 45 minutes. After the reaction solution was cooled and concentrated under reduced pressure, 30 ml of n-hexane was added and insoluble materials were filtered off.

濾液を再び濃縮し、酢酸エチル54m1に溶解し、有機
層を飽和食塩水36m1で2回洗浄し、無水硫酸マグネ
シウムで乾燥した。濃縮することによりシリル化体混合
物1.30g(収率96%)を得た。
The filtrate was concentrated again and dissolved in 54 ml of ethyl acetate, and the organic layer was washed twice with 36 ml of saturated brine and dried over anhydrous magnesium sulfate. By concentrating, 1.30 g (yield 96%) of a silylated product mixture was obtained.

b) 前記a)で得たシリル化体混合物1.3gを東洋
ソーダ製分取用液クロ装置HLC−837型、カラム:
東洋ソーダ製ステンレスカラム(60μシリカ、50φ
x300mm)、 7B媒:n−ヘキサン:塩化メチレ
ン=96:5にてカラムクロマトグラフィーを行った。
b) 1.3 g of the silylated mixture obtained in a) above was transferred to a preparative liquid chromatography device HLC-837 model manufactured by Toyo Soda, column:
Toyo Soda stainless steel column (60μ silica, 50φ
Column chromatography was performed using 7B medium: n-hexane: methylene chloride = 96:5.

180〜580m1に1a−OH−D3部分、450〜
950m1に1α−0H−)ランスD3部分、4000
〜60・00m1に1β−0H−D3部分が溶出した。
1a-OH-D3 part in 180-580m1, 450-
950m1 1α-0H-) Lance D3 part, 4000
The 1β-0H-D3 portion was eluted at ~60·00 ml.

高速液体クロマトグラフィー(HPLC)純度100%
の部分である180〜450m1を濃縮し、1α−ヒド
ロキシビタミンD3−1.3−ビストリメチルシリルエ
ーテル0.98g(収率90%)を得た。
High performance liquid chromatography (HPLC) purity 100%
A portion of 180 to 450 ml was concentrated to obtain 0.98 g (yield 90%) of 1α-hydroxyvitamin D3-1.3-bistrimethylsilyl ether.

’HNMR(80MHz、CDCl3 )6 : 0゜
12 (18H,s)、0.50 (3H,s)、0゜
70〜3.00 (33H,m)、3.80〜4゜20
 (2H,m)、4.70〜4.92 (IH。
'HNMR (80MHz, CDCl3) 6: 0°12 (18H, s), 0.50 (3H, s), 0°70-3.00 (33H, m), 3.80-4°20
(2H, m), 4.70-4.92 (IH.

m)、5.15〜5.35 (IH,m)、5.80 
 (IH,d、  J=12Hz)、  6. 15 
 (IH。
m), 5.15-5.35 (IH, m), 5.80
(IH, d, J=12Hz), 6. 15
(IH.

d+  J=12Hz)、IR(neat)cm−’ 
:2850.124’0. 1060,830゜C) 
前記b)で得た1(1−OH−D3の1゜3−ビストリ
メチルシリル体0.68g (1,25mmo l e
)を0.2%KOH/メタノール34m1に溶解し、室
温にて30〜45分間攪拌した。反応液を1%食塩水1
00m1.酢酸エチル200m1−t−キサ720m1
の混合溶液に展開し、充分撹拌混合した。有機層を分離
し1%食塩水100m1で2回洗浄した後、無水硫酸マ
グネ/ラムで乾燥した。溶媒を減圧上留去するとHPL
C純度100%の1α−0H−D30.46g(収率9
2%)を得た。
d+ J=12Hz), IR(neat)cm-'
:2850.124'0. 1060,830°C)
0.68 g (1,25 mmol of 1°3-bistrimethylsilyl compound of 1-OH-D3 obtained in b) above
) was dissolved in 34 ml of 0.2% KOH/methanol and stirred at room temperature for 30-45 minutes. Dilute the reaction solution with 1% saline solution
00m1. Ethyl acetate 200ml - t-xa720ml
The mixture was developed into a mixed solution and thoroughly stirred and mixed. The organic layer was separated, washed twice with 100 ml of 1% brine, and then dried over anhydrous magnesium sulfate/rum. When the solvent is distilled off under reduced pressure, HPL
30.46 g of 1α-0H-D with 100% C purity (yield 9
2%).

実施例2゜ a)  1β−0H−D3および1a−OH−トランス
D3を各々0.1g含む1α−0H−D31、OOg 
(2,49mmc+ l e)を塩化メチレン50m1
に溶解し、ピリジ70.98g (12゜4mmo l
 e)、塩化ジメチルイソプロピルシラ70.75g 
(5,5mmo l e)を加え室温で1時間撹拌した
。以下実施例1a)に記載の方法と同様に処理し、シリ
ル化体混合物1.41g(収率94%)を得た。
Example 2゜a) 1α-0H-D31, OOg containing 0.1 g each of 1β-0H-D3 and 1a-OH-trans D3
(2,49mmc+le) in 50ml of methylene chloride
70.98g (12゜4mmol
e), 70.75 g of dimethylisopropyl sila chloride
(5.5 mmole) was added and stirred at room temperature for 1 hour. The following treatment was carried out in the same manner as described in Example 1a) to obtain 1.41 g (yield: 94%) of a silylated product mixture.

b) 前記a)で得たシリル化体混合物1.41gを実
施例1a)に記載するのと同じ装置を用いカラムクロマ
トグラフィーを行った(/S媒:n−ヘキサン:塩化メ
チレン=98 : 2)。200〜520m lに1a
−OH−D3部分、370〜850m1に1a−OH−
トラ7ス[)3部分、3000〜4500m lに1β
−0H−D3部分が溶出した。HPLC純度100%の
200〜370m1部分を濃縮し、1α−ヒドロキシビ
タミンD3−1.3−ビスジメチルイソプロピルシリル
エーテル0.84g(収率70%)を得た。
b) 1.41 g of the silylated mixture obtained in a) above was subjected to column chromatography using the same apparatus as described in Example 1a) (/S medium: n-hexane: methylene chloride = 98:2). ). 1a for 200-520ml
-OH-D3 part, 1a-OH- in 370-850 m1
Tora 7s [) 3 parts, 3000-4500ml 1β
-0H-D3 portion was eluted. A 200 to 370 ml portion with 100% HPLC purity was concentrated to obtain 0.84 g (70% yield) of 1α-hydroxyvitamin D3-1.3-bisdimethylisopropylsilyl ether.

’HNMR(80MHz、CDC13)δ:o。'HNMR (80MHz, CDC13) δ:o.

O6(12H,s)、0.52 (3H,s)、0゜7
0〜2.90 (47H,m)、3.90〜4゜45 
(2H,m)、4.80 (IH,d、J=2Hz)、
5.10 (IH,d、J=2Hz)、5゜90  (
IH,d、  J=12Hz)、  8.20  (I
H,d、  J=12Hz) IR(neat)cm−’ :2950.1250゜1
090、 830 C) 前記b)で得たシリル化体0.24g(0,40
mmo l e)を0.2%KOH/メタノール30m
1に溶解し、6時間加熱還流した。反応液を実施例1c
)に記載の方法と同様に処理しHPCL純度100 %
 ノ1 a  OH−D 30 、 144g(収率9
0%)を得た。
O6 (12H, s), 0.52 (3H, s), 0°7
0~2.90 (47H, m), 3.90~4゜45
(2H, m), 4.80 (IH, d, J=2Hz),
5.10 (IH, d, J=2Hz), 5°90 (
IH, d, J=12Hz), 8.20 (I
H, d, J=12Hz) IR (neat) cm-': 2950.1250°1
090, 830 C) 0.24 g of the silylated product obtained in b) above (0,40
mmol e) in 0.2% KOH/methanol 30m
1 and heated under reflux for 6 hours. The reaction solution was prepared from Example 1c.
) The HPLC purity was 100%.
No. 1 a OH-D 30 , 144 g (yield 9
0%) was obtained.

実施例3゜ a)   lβ−0H−D3および1a−Q)(−)う
7スD3 ヲ各/ro、  1 g含b 1 a−OH
−D31.00g (2,49mmo l e)をピリ
ジン100m1に溶解し、塩化トリエチルシラン1.7
ml (10mmole)を加え、50〜60°Cで3
0分間撹拌した。反応液を冷却し、酢酸エチル150m
1に展開し、IN塩酸100m1で4回処理した。有機
層を飽和食塩水50m1で2回洗浄した。無水硫酸マグ
ネシウムで乾燥し濃縮することによりシリル化体混合物
1.49g(収率95%)を得た。
Example 3゜a) lβ-0H-D3 and 1a-Q) (-) U7S D3 wo/ro, 1 g containing b 1 a-OH
-D 31.00g (2,49mmol e) was dissolved in pyridine 100ml, and triethylsilane chloride 1.7
ml (10 mmole) and incubate at 50-60°C for 3
Stirred for 0 minutes. Cool the reaction solution and add 150ml of ethyl acetate.
1 and treated with 100 ml of IN hydrochloric acid four times. The organic layer was washed twice with 50 ml of saturated brine. By drying over anhydrous magnesium sulfate and concentrating, 1.49 g (yield: 95%) of a silylated product mixture was obtained.

b) 前記a)で得たシリル化体混合物1.49gを実
施例1a)に記載するのと同じ装置を用いカラムクロマ
トグラフィーを行った(溶媒:n−ヘキサン:塩化メチ
レン=98 : 2)。200〜500 m lに1a
−OH−D3部分、350〜800m1に1a−OH−
トランスD3部分、4000〜5500mlに1β−0
H−D3部分が溶出した。HPLC純度100%の20
0〜350m1部分を濃縮し、1α−ヒドロキシビタミ
ンD3−1.3−ビストリエチルシリルエーテル0゜9
0g(収率72%)を得た。
b) 1.49 g of the silylated mixture obtained in a) above was subjected to column chromatography using the same apparatus as described in Example 1a) (solvent: n-hexane:methylene chloride = 98:2). 1a for 200-500ml
-OH-D3 part, 1a-OH- in 350-800 m1
Trans D3 part, 1β-0 in 4000-5500ml
The H-D3 portion was eluted. 20 with HPLC purity of 100%
Concentrate 0 to 350 ml of 1α-hydroxyvitamin D3-1.3-bistriethylsilyl ether 0°9
0 g (yield 72%) was obtained.

’HNMR(80MHz、CDC13)δ:0゜30〜
3.00 (83H,m)、3.95〜4゜55 (2
H,m)、4.70〜4.95 (IH。
'HNMR (80MHz, CDC13) δ: 0°30~
3.00 (83H, m), 3.95~4°55 (2
H, m), 4.70-4.95 (IH.

m)、5.00〜5.28 (2H,m)、5.95 
(IH,d、J=12Hz)、8.20 (IH。
m), 5.00-5.28 (2H, m), 5.95
(IH, d, J=12Hz), 8.20 (IH.

d、J=12Hz) IR(neat)cm” :2950,1240゜10
80、 720゜ C) 前記b)で得た1a−OH−D3の1゜3−ビス
トリエチルシリル化体0.28g (0゜45mmo 
l e)を実施例1.0)に記載するのと同様な方法で
処理し、HPLC純度100%の1α−0H−D30.
1白4g(収率92%)を得た。
d, J=12Hz) IR (neat) cm”: 2950, 1240°10
80, 720°C) 0.28 g of 1°3-bistriethylsilylated 1a-OH-D3 obtained in b) above (0°45 mmo
l e) was treated in a similar manner as described in Example 1.0) to obtain 1α-0H-D30.1 with 100% HPLC purity.
4 g (yield 92%) of 1 white was obtained.

実施例4゜ a)  1β−0H−D3および1a−OH−トランス
D3を各々0.1g含む1α−0H−D31.00g 
(2,49mmo l e)をジメチルホルムアミド5
0m1に溶解しイミダゾール0. 75g (11,0
mmo l e)+塩化で一ブチルジメチルシラ70.
885g (5,5mmo le)を加え室温で1時間
撹拌した。 反応液を酢酸エチル300m1に展開し、
5%炭酸水素ナトリウム水溶液300m1.飽和食塩水
300m1で2回洗浄し、la縮するとシリル化体混合
物1.49g(収率95%)を得た。
Example 4゜a) 1α-0H-D31.00g containing 0.1g each of 1β-0H-D3 and 1a-OH-transD3
(2,49 mmol e) in dimethylformamide 5
Dissolve imidazole in 0ml. 75g (11,0
mmol e) + monobutyldimethylsilica chloride 70.
885 g (5.5 mmole) was added and stirred at room temperature for 1 hour. The reaction solution was developed in 300ml of ethyl acetate,
5% sodium bicarbonate aqueous solution 300ml 1. It was washed twice with 300 ml of saturated brine and subjected to la condensation to obtain 1.49 g (yield 95%) of a silylated product mixture.

b) 前記a)で得たシリル化体混合物1.49gを実
施例1a)に記載するのと同じ装置を用いカラムクロマ
トグラフィーを行った(溶媒二〇−ヘキサン:塩化メチ
レン=98:2)、150〜450m1に1 α−o)
(−D3部分、350〜700m1に1a−OH−トラ
ンスD3部分、3800〜5200m1に1β−0H−
D3部分が溶出した。HPLC純度100%の150〜
350m1部分を濃縮し1α−ヒドロキシビタミンD3
−1,3−ビスt−ブチルジメチルシリルエーテル0.
93g(収率74%)を得た。
b) 1.49 g of the silylated product mixture obtained in a) above was subjected to column chromatography using the same apparatus as described in Example 1a) (solvent 20-hexane: methylene chloride = 98:2), 1 α-o) for 150-450m1
(-D3 part, 1a-OH-trans D3 part in 350-700 m1, 1β-0H- in 3800-5200 m1
Part D3 was eluted. 150~ with HPLC purity 100%
Concentrate 350ml portion to 1α-hydroxyvitamin D3
-1,3-bis t-butyldimethylsilyl ether 0.
93 g (yield 74%) was obtained.

’HNMR(60MHz、CDC13)δ:0゜O6(
12H,s)、0.52 (3H,s)、0゜70〜3
.00 (51H,m)、4.80 (IH。
'HNMR (60MHz, CDC13) δ: 0°O6 (
12H,s), 0.52 (3H,s), 0°70~3
.. 00 (51H, m), 4.80 (IH.

d、J=12Hz)、5.10 (IH,d、J=2H
z)、5.90 (IH,d、J=12Hz)。
d, J=12Hz), 5.10 (IH, d, J=2H
z), 5.90 (IH, d, J=12Hz).

6.20 (IH,d、J=12Hz)IR(neat
)cm−1:2950.1250゜1080.840 C) 前記b)で得た1a−OH−D3の1゜3−ビス
t−ブチルジメチルシリル化体0.20g (0,32
mmo l e)をメタノールLoomlに溶解し、陽
イオン交換樹脂20gを加え室温下3時間撹拌した。
6.20 (IH, d, J=12Hz) IR (neat
) cm-1: 2950.1250°1080.840 C) 0.20 g of 1°3-bis-t-butyldimethylsilylated 1a-OH-D3 obtained in b) above (0.32
mmol e) was dissolved in methanol Looml, 20 g of a cation exchange resin was added, and the mixture was stirred at room temperature for 3 hours.

濾過後HPLC純度100%の1α−OH−D30.1
15g(収率90%)を得た。
1α-OH-D30.1 with 100% HPLC purity after filtration
15 g (yield 90%) was obtained.

比較例 HPLC純度99.27%の1α−0H−D31.00
g (2,49mmole)(1β−0H−D3と1α
−0H−トランスD3合わせて0゜73%混入)を実施
例1a)に記載するのと同じ装置を用いカラムクマドグ
ラフィーを行なった(溶媒:酢酸エチル:n−ヘキサン
=2:1)。330〜420m1に1β−0H−D3お
よび1α−0H−トランスD3部分、3EtO〜480
m1に1α−0H−D3部分が溶出した。1α−0H−
D3部分の分画についてリサイクル操作を4回繰返し、
2000〜2250m1の溶出部分を濃縮するとHPL
C純度99.47%の1α−0H−D3 0.63g 
(収率63%)を得る。このものはHPLCで1β−0
H−D3 ト1a−OH−トランスD3合わせて0.5
3%混入していた。
Comparative Example 1α-0H-D with HPLC purity of 99.27% 31.00
g (2,49 mmole) (1β-0H-D3 and 1α
-0H-trans D3 (combined 0.73%) was subjected to column chromatography using the same apparatus as described in Example 1a) (solvent: ethyl acetate: n-hexane = 2:1). 1β-0H-D3 and 1α-0H-transD3 moieties in 330-420ml, 3EtO-480
The 1α-0H-D3 portion was eluted in m1. 1α-0H-
Repeat the recycling operation four times for the D3 fraction,
Concentrating the eluted portion of 2000-2250ml results in HPL
0.63 g of 1α-0H-D3 with C purity of 99.47%
(yield 63%). This one is 1β-0 by HPLC.
H-D3 To1a-OH-Trans D3 total 0.5
It contained 3%.

Claims (1)

【特許請求の範囲】 下記一般式 I 、IIおよび/またはIII ▲数式、化学式、表等があります▼( I ) ▲数式、化学式、表等があります▼(II) ▲数式、化学式、表等があります▼(III) [式中R1およびR2は各々同一または異なって一般式
: ▲数式、化学式、表等があります▼(式中R3、R4お
よびR5は各々 同一または異なって低級アルキル基またはアリール基を
意味する)で示される基である]で表される1α−ヒド
ロキシビタミンD3のシリルエーテル、1β−ヒドロキ
シビタミンD3のシリルエーテルおよび/または1α−
ヒドロキシ−5,6−トランスビタミンD3のシリルエ
ーテルよりなる混合物をシカリゲルを主成分とする担体
を用いたクロマトグラフィーに付しそれぞれの成分に分
離せしめることを特徴とする1α−ヒドロキシビタミン
D3の精製法。
[Claims] The following general formulas I, II and/or III ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (I) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (II) ▲ Numerical formulas, chemical formulas, tables, etc. ▼(III) [In the formula, R1 and R2 are the same or different and are general formulas: ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (In the formula, R3, R4 and R5 are the same or different and are lower alkyl groups or aryl groups silyl ether of 1α-hydroxyvitamin D3, silyl ether of 1β-hydroxyvitamin D3 and/or 1α-
A method for purifying 1α-hydroxyvitamin D3, which comprises separating a mixture of silyl ethers of hydroxy-5,6-transvitamin D3 into its respective components by subjecting it to chromatography using a carrier containing silicari gel as a main component. .
JP14368686A 1986-06-19 1986-06-19 Purification of 1alpha-hydroxyvitamin d3 Pending JPS62298572A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14368686A JPS62298572A (en) 1986-06-19 1986-06-19 Purification of 1alpha-hydroxyvitamin d3

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14368686A JPS62298572A (en) 1986-06-19 1986-06-19 Purification of 1alpha-hydroxyvitamin d3

Publications (1)

Publication Number Publication Date
JPS62298572A true JPS62298572A (en) 1987-12-25

Family

ID=15344592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14368686A Pending JPS62298572A (en) 1986-06-19 1986-06-19 Purification of 1alpha-hydroxyvitamin d3

Country Status (1)

Country Link
JP (1) JPS62298572A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004504295A (en) * 2000-07-18 2004-02-12 ボーン ケア インターナショナル インコーポレイテッド Stabilized 1α-hydroxyvitamin D

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004504295A (en) * 2000-07-18 2004-02-12 ボーン ケア インターナショナル インコーポレイテッド Stabilized 1α-hydroxyvitamin D

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