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84-36-6

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Identification

Name
SYROSINGOPINE
CAS
84-36-6
Synonyms
SYROSINGOPINE
18-[[4-[(Ethoxycarbonyl)oxy]-3,5-dimethoxybenzoyl]oxy]-11,17-dimethoxy-yohimban-16-carboxylic acid methyl ester
3beta,20alpha-Yohimban-16beta-carboxylic acid, 18beta-hydroxy-11,17alpha-dimethoxy-, methyl ester, 4-hydroxy-3,5-dimethoxybenzoate (ester) ethyl carbonate (ester)
3beta,20alpha-Yohimban-16beta-carboxylic acid, 18beta-hydroxy-11,17alpha-dimethoxy-, methyl ester, ester with 4-hydroxy-3,5-dimethoxybenzoic acid ethyl carbonate
arbonate
Benzoic acid, 4-hydroxy-3,5-dimethoxy-, ethyl carbonate, ester with methyl reserpate
benzoicacid,4-hydroxy-3,5-dimethoxy-,ethylcarbonate,esterwithmethylre
Carbethoxysyringoyl methylreserpate
carbethoxysyringoylmethylreserpate
Elufinesin
Etropres
HF-41T
imethoxy-,methylester,esterwith4-hydroxy-3,5-dimethoxybenzoicacidethylc
Ipores
Isotense
Londomin
Menatensina
Methyl 18-((4-[(ethoxycarbonyl)oxy]-3,5-dimethoxybenzoyl)oxy)-11,17-dimethoxyyohimban-16-carboxylate
Methyl 18beta-hydroxy-11,17alpha-dimethoxy-3beta,20alpha-yohimban-16beta-carboxylate 4-hydroxy
Methyl carbethoxysyringoyl reserpate
EINECS(EC#)
201-527-0
Molecular Formula
C35H42N2O11
MDL Number
MFCD00017411
Molecular Weight
666.71
MOL File
84-36-6.mol

Chemical Properties

Definition
Methyl reserpate ester of syringic acid ethyl carbonate. An analog of reserpine.
Appearance
White or slightly yellowish powder. Practically insoluble in water; slightly soluble in methanol; soluble in chloroform and acetic acid.
Melting point 
175°C
mp 
175°C
Boiling point 
686.09°C (rough estimate)
density 
1.2536 (rough estimate)
refractive index 
1.5300 (estimate)
pka
18.11±0.70(Predicted)
Uses
Medicine.
CAS DataBase Reference
84-36-6(CAS DataBase Reference)

Safety Data

RIDADR 
1544
HazardClass 
6.1(b)
PackingGroup 
III
Toxicity
LD50 oral in rat: > 2gm/kg

Hazard Information

Chemical Properties
White or slightly yellowish powder. Practically insoluble in water; slightly soluble in methanol; soluble in chloroform and acetic acid.
Originator
Singoserp,Ciba,US,1958
Manufacturing Process
1 part by weight of methyl reserpate and 1.9 parts by weight of Ocarbethoxysyringoyl chloride were dissolved in 20 parts by volume of anhydrous pyridine and allowed to stand at 5°C for 3 days. An equal volume of ice was then added, and the mixture evaporated to dryness in vacuo. The residue was dissolved in 50 parts by volume of chloroform and washed in succession with three 50 parts by volume portions of 2% sodium hydroxide solution and two 50 parts by volume portions of water. The chloroform solution was dried over sodium sulfate and evaporated to dryness. The residue was dissolved in 15 parts by volume of benzene and chromatographed on a 10 part by weight column of II-III grade alumina. Eluates of benzene, 90 benzene: 10 acetone, 80 benzene: 20 acetone, 60 benzene: 40 acetone; and acetone were removed. From the 90 benzene: 10 acetone eluate there was recovered crystalline methyl O-(O'-carbethoxysyringoyl)-reserpate, melting point 175°C to 178°C, on crystallization from acetone.
Therapeutic Function
Antihypertensive

Well-known Reagent Company Product Information

Sigma Aldrich
84-36-6(sigmaaldrich)
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