JPS562996A - Isolation of 1,2-o-isopropylidene-beta-l-idurono-6,3-lactone - Google Patents
Isolation of 1,2-o-isopropylidene-beta-l-idurono-6,3-lactoneInfo
- Publication number
- JPS562996A JPS562996A JP7805479A JP7805479A JPS562996A JP S562996 A JPS562996 A JP S562996A JP 7805479 A JP7805479 A JP 7805479A JP 7805479 A JP7805479 A JP 7805479A JP S562996 A JPS562996 A JP S562996A
- Authority
- JP
- Japan
- Prior art keywords
- lactone
- isopropylidene
- ring
- solution
- acid
- 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.)
- Granted
Links
Landscapes
- Saccharide Compounds (AREA)
Abstract
PURPOSE: To isolate the titled compound useful as a biochemical reagent, etc., ecnomically in an industrial scale, from an aqueous solution of specific lactone mixture, by maintaining the pH of the solution within a range to open the lactone ring of the titled compound exclusively, separating the formed acid from the other lactones, and then closing the ring to regenerate the objective lactone.
CONSTITUTION: An aqueous solution of a mixture of (A) 1,2-O-isopropylidene- β-L-idurono-6,3-lactone and (B) 1,2-O-isopropylidene-α-D-glucurono-6,3-lactone is added with a base such as sodium hydroxide while maintaining the pH of the solution within the range under which only the lactone ring of the component A opens, i.e. at pH6W7. The products are subjected to the thin layer chromatography, etc. to separate the produced induronic acid from the component B. The separated iduronic acid is dissolved in water, passed through a column filled with a cation exchange resin, and the effluent is concentrated under reduced pressure to obtain the objective compound.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7805479A JPS562996A (en) | 1979-06-22 | 1979-06-22 | Isolation of 1,2-o-isopropylidene-beta-l-idurono-6,3-lactone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7805479A JPS562996A (en) | 1979-06-22 | 1979-06-22 | Isolation of 1,2-o-isopropylidene-beta-l-idurono-6,3-lactone |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS562996A true JPS562996A (en) | 1981-01-13 |
JPS6312877B2 JPS6312877B2 (en) | 1988-03-23 |
Family
ID=13651130
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7805479A Granted JPS562996A (en) | 1979-06-22 | 1979-06-22 | Isolation of 1,2-o-isopropylidene-beta-l-idurono-6,3-lactone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS562996A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58156287A (en) * | 1982-03-12 | 1983-09-17 | Pioneer Electronic Corp | Video reproducer |
JPS5961389A (en) * | 1982-09-30 | 1984-04-07 | Sony Corp | Chromaticity adjusting circuit |
-
1979
- 1979-06-22 JP JP7805479A patent/JPS562996A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58156287A (en) * | 1982-03-12 | 1983-09-17 | Pioneer Electronic Corp | Video reproducer |
JPS5961389A (en) * | 1982-09-30 | 1984-04-07 | Sony Corp | Chromaticity adjusting circuit |
Also Published As
Publication number | Publication date |
---|---|
JPS6312877B2 (en) | 1988-03-23 |
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