DE1966821B2 - and its acid addition salts - Google Patents
and its acid addition saltsInfo
- Publication number
- DE1966821B2 DE1966821B2 DE1966821A DE1966821A DE1966821B2 DE 1966821 B2 DE1966821 B2 DE 1966821B2 DE 1966821 A DE1966821 A DE 1966821A DE 1966821 A DE1966821 A DE 1966821A DE 1966821 B2 DE1966821 B2 DE 1966821B2
- Authority
- DE
- Germany
- Prior art keywords
- acid addition
- addition salts
- hydrazide
- compound
- seryl
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C251/00—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton
- C07C251/72—Hydrazones
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C243/00—Compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
- C07C243/24—Hydrazines having nitrogen atoms of hydrazine groups acylated by carboxylic acids
- C07C243/26—Hydrazines having nitrogen atoms of hydrazine groups acylated by carboxylic acids with acylating carboxyl groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C243/34—Hydrazines having nitrogen atoms of hydrazine groups acylated by carboxylic acids with acylating carboxyl groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of a carbon skeleton further substituted by nitrogen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Die Erfindung betrifft ein neues,
abgeleitetes Hydrazid der Formel:The invention relates to a new,
derived hydrazide of the formula:
von L-Serinof L-serine
HO-< VcH = N-NH-CO-CH-CH,OH (1)HO- <VcH = N-NH-CO-CH-CH, OH (1)
HOHO
OHOH
NH,NH,
Erhöhung von CA in
arbiträren EinheitenIncrease of CA in
arbitrary units
sowie Säureadditionssalze !hiervon.as well as acid addition salts!
Die erfindungsgemäßen Verbindungen sind Zwischenverbindungen zur Herstellung von Ni-L-Seryl-N2-(2,3,4-trihydroxy-benzyl)-hydrazid sowie dessen Säureadditionssalzen. Die letztgenannte Verbindung -weist pharmakologische Wirkung auf, und zwar besitzt sie eine decarboxylasehemmende Wirkung, wobei von besonderem Interesse ist, daß sie in Kombination mit L-Dopa hervorragende Mittel zur Behandlung von Parkinsonismus darstellt und antidepressiv wirkt. Zum Nachweis der Überlegenheit wurden die von L-Dopa induzierten Erhöhungen von Catecholaminen (CA) im Gehirn durch Verwendung vonThe compounds according to the invention are intermediate compounds for the preparation of Ni-L-seryl-N2- (2,3,4-trihydroxy-benzyl) hydrazide as well as its acid addition salts. The latter connection has pharmacological effect, namely it has a decarboxylase-inhibiting effect, with of of particular interest is that they are combined with L-Dopa excellent means of treating Represents Parkinsonism and has an antidepressant effect. As evidence of its superiority, those of L-Dopa induced elevations of catecholamines (CA) in the brain through the use of
1. 12 mg/kg N,-D,L-Serin-N-(2,3,4-trihydroxybenzyi)-hydrazid-hydrochlorid.
Produkt des Beispiels 3 der deutschen Patentschrift 11 65 607
(Verbindung E in der nachstehenden Tabelle),1. 12 mg / kg N, -D, L-serine-N- (2,3,4-trihydroxybenzyi) -hydrazide hydrochloride. Product of example 3 of German patent specification 11 65 607
(Compound E in the table below),
2. einer äquimolaren Menge von Ni-D.L-Alanin-N2-(2,3,4-trihydroxybenzyl)-hydrazid-hydrochlorid.
Produkt des Beispiels 6 derselben
Patentschrift (Verbindung F), und2. an equimolar amount of Ni-DL-alanine-N 2 - (2,3,4-trihydroxybenzyl) hydrazide hydrochloride. Example 6 product of the same
Patent specification (compound F), and
100100
11,5 13611.5 136
Daraus ergibt sich, daß die Verbindung G eine größere decarboxylaseheminende Wirkung hat als die bekannten Verbindungen E und F.As a result, Compound G has a greater decarboxylase-inhibiting effect than that known compounds E and F.
Die erfindungsgemäße Verbindung der Formel I und deren Salze können nach an sich bekannten Methoden erhalten werden, beispielsweise durch Umsetzung eines Säureadditionssalzes von L-Scrinhydrazid mit 2,3,4-Trihydroxy-benzaldehyd. The compound of the formula I according to the invention and its salts can be prepared by methods known per se be obtained, for example by reacting an acid addition salt of L-scrinhydrazide with 2,3,4-trihydroxy-benzaldehyde.
Die erfindungsgemäße Verbindung der Formel I kann durch katalytische Hydrierung in das pharmakologisch aktive Ni-L-Seryl-N2-(2,3,4-trihydroxybenzyl)-hydra/.id übergeführt werden.The compound of the formula I according to the invention can be converted into the pharmacologically by catalytic hydrogenation active Ni-L-Seryl-N2- (2,3,4-trihydroxybenzyl) -hydra / .id can be converted.
Herstellung von N|-L-Seryl-N2-(2,3,4-trihydroxybenzylider.)-hydrazid-hydrochlorid Production of N | -L-Seryl-N2- (2,3,4-trihydroxybenzylider.) - hydrazide hydrochloride
15,4 g 2,3,4-Trihydroxybenzaldehyd werden in 200 ml siedendem Wasser gelöst und auf einmal mit 15,2 g L-Serin-hydrazid-hydrochlorid versetzt. Man erhält eine klare Lösung. Diese wird unter vermindertem Druck eingeengt und durch portionenweise Zugabe von Äthanol wird das Wasser allmählich verdrängt. Hierbei entsteht ein Kristallbrei. Dieser wird genutscht und mit Äthanol und Äther gewaschen. Man erhält das N|-L-Seryl-N>-(2,3,4-trihydiOxy-benzyliden)-hydrazidhydrodilorid vom F. = 260-2650C [λ]»= +23" (c = 1: H2O).15.4 g of 2,3,4-trihydroxybenzaldehyde are dissolved in 200 ml of boiling water, and 15.2 g of L-serine hydrazide hydrochloride are added all at once. A clear solution is obtained. This is concentrated under reduced pressure and the water is gradually displaced by adding ethanol in portions. This creates a crystal pulp. This is sucked up and washed with ethanol and ether. The N | -L-Seryl-N> - (2,3,4-trihydiOxy-benzylidene) -hydrazidhydrodilorid of F. = 260-265 0 C [λ] >> = +23 "(c = 1: H 2 O).
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1240368A CH554844A (en) | 1968-08-16 | 1968-08-16 | METHOD OF MANUFACTURING A HYDRAZIDE. |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1966821A1 DE1966821A1 (en) | 1974-07-11 |
DE1966821B2 true DE1966821B2 (en) | 1978-03-16 |
DE1966821C3 DE1966821C3 (en) | 1978-11-23 |
Family
ID=4382677
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1966821A Expired DE1966821C3 (en) | 1968-08-16 | 1969-08-13 | Ni.i ^ »> i-N2 - (23.4-trihydroxy-benzylidene) hydrazide and its acid addition salts |
DE1941284A Expired DE1941284C3 (en) | 1968-08-16 | 1969-08-13 | N to the power of 1-L-Seryl-N to the power of 2- (2,3,4trihydroxybenzyl) hydrazide, process for its preparation and its acid addition salts and pharmaceuticals containing them |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1941284A Expired DE1941284C3 (en) | 1968-08-16 | 1969-08-13 | N to the power of 1-L-Seryl-N to the power of 2- (2,3,4trihydroxybenzyl) hydrazide, process for its preparation and its acid addition salts and pharmaceuticals containing them |
Country Status (16)
Country | Link |
---|---|
JP (1) | JPS5114501B1 (en) |
AT (2) | AT299158B (en) |
BE (1) | BE737420A (en) |
CA (1) | CA958418A (en) |
CH (1) | CH554844A (en) |
CS (1) | CS162689B2 (en) |
DE (2) | DE1966821C3 (en) |
DK (1) | DK126776B (en) |
ES (1) | ES370500A1 (en) |
FR (2) | FR2015792B1 (en) |
GB (1) | GB1250279A (en) |
IE (1) | IE33519B1 (en) |
IL (1) | IL32767A (en) |
MY (1) | MY7300018A (en) |
NL (1) | NL6912320A (en) |
SE (1) | SE378242B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103951587A (en) * | 2014-04-11 | 2014-07-30 | 浙江耐司康药业有限公司 | Synthetic method for intermediate of benserazide hydrochloride |
WO2015197909A1 (en) | 2014-06-27 | 2015-12-30 | Fermion Oy | Process for the preparation of a crystalline polymorph of 2-amino-3-hydroxy-n'-(2,3,4-trihydroxybenzyl)propanehydrazide (benserazide) hydrochloride |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3065265A (en) * | 1957-07-04 | 1962-11-20 | Hoffmann La Roche | Amino acid hydrazides |
-
1968
- 1968-08-16 CH CH1240368A patent/CH554844A/en not_active IP Right Cessation
-
1969
- 1969-08-04 SE SE6910878A patent/SE378242B/xx unknown
- 1969-08-04 IL IL32767A patent/IL32767A/en unknown
- 1969-08-11 IE IE1125/69A patent/IE33519B1/en unknown
- 1969-08-13 CS CS5600A patent/CS162689B2/cs unknown
- 1969-08-13 DE DE1966821A patent/DE1966821C3/en not_active Expired
- 1969-08-13 NL NL6912320A patent/NL6912320A/xx unknown
- 1969-08-13 BE BE737420D patent/BE737420A/xx unknown
- 1969-08-13 DE DE1941284A patent/DE1941284C3/en not_active Expired
- 1969-08-14 GB GB1250279D patent/GB1250279A/en not_active Expired
- 1969-08-14 DK DK436569AA patent/DK126776B/en unknown
- 1969-08-14 AT AT783669A patent/AT299158B/en not_active IP Right Cessation
- 1969-08-14 AT AT534671A patent/AT299160B/en not_active IP Right Cessation
- 1969-08-14 FR FR696928006A patent/FR2015792B1/fr not_active Expired
- 1969-08-14 ES ES370500A patent/ES370500A1/en not_active Expired
- 1969-08-15 JP JP44064663A patent/JPS5114501B1/ja active Pending
- 1969-08-15 CA CA059,620A patent/CA958418A/en not_active Expired
-
1971
- 1971-09-09 FR FR7132582A patent/FR2104722B1/fr not_active Expired
-
1973
- 1973-12-30 MY MY18/73A patent/MY7300018A/en unknown
Also Published As
Publication number | Publication date |
---|---|
CH554844A (en) | 1974-10-15 |
GB1250279A (en) | 1971-10-20 |
IL32767A0 (en) | 1969-11-12 |
IL32767A (en) | 1973-01-30 |
AT299160B (en) | 1972-06-12 |
DE1941284A1 (en) | 1970-02-19 |
DE1941284B2 (en) | 1974-05-30 |
FR2015792B1 (en) | 1973-08-10 |
AT299158B (en) | 1972-06-12 |
SE378242B (en) | 1975-08-25 |
BE737420A (en) | 1970-02-13 |
NL6912320A (en) | 1970-02-18 |
DK126776B (en) | 1973-08-20 |
JPS5114501B1 (en) | 1976-05-10 |
DE1941284C3 (en) | 1975-01-30 |
ES370500A1 (en) | 1971-04-16 |
CS162689B2 (en) | 1975-07-15 |
FR2104722A1 (en) | 1972-04-21 |
IE33519L (en) | 1970-02-16 |
DE1966821A1 (en) | 1974-07-11 |
DE1966821C3 (en) | 1978-11-23 |
MY7300018A (en) | 1973-12-31 |
IE33519B1 (en) | 1974-07-24 |
FR2015792A1 (en) | 1970-04-30 |
FR2104722B1 (en) | 1974-03-22 |
CA958418A (en) | 1974-11-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
8339 | Ceased/non-payment of the annual fee |