Document Detail


Synthesis of conformationally restricted acidic lipids. I. Cyclopentanoid analogs of phosphatidylserine.
MedLine Citation:
PMID:  6875388     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A series of six analogs of phosphatidylserine (PS) was synthesized in which the conformational mobility of the backbone was limited. Each analog was a derivative of one of the three diastereoisomeric cyclopentane-1,2,3-triols, so that the glycerol moiety of the PS was, in effect, replaced by each cyclopentane-1,2,3-triol. Four of the members of the series were vicinal dipalmitates [1,2/3-(1P); 1,2/3-(3P); 1,2,3/0-(1P); 1,3/2-(1P)] while the other two members were "unnatural" in that they contained a 2-phosphate group. The two 2-phosphate derivatives were meso-forms and each of the other four derivatives was a DL-pair. Each PS analog was obtained as a stable microcrystalline precipitate analyzing for the monohydrate of a mixture of mono- and di-sodium salts. The infrared spectra, melting behavior, and chromatographic mobility of each sodium salt mixture resembled those obtained for bovine (glycero-)-phosphatidyl-L-serine; the stereochemical differences in the ring caused only marginal variation in these properties. The optical rotation values of the compounds varied with the stereochemistry of the ring. The all-trans-2-phosphate isomer 8d exhibited a negative rotation value, in contrast to each of the other isomers. The all-trans isomer [1,3/2-(1P)] was shown to undergo diazometholysis with diazomethane to give the dimethyl ester of cyclopentano-phosphatidic acid.
Authors:
H Pajouhesh; A J Hancock
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Journal of lipid research     Volume:  24     ISSN:  0022-2275     ISO Abbreviation:  J. Lipid Res.     Publication Date:  1983 May 
Date Detail:
Created Date:  1983-09-09     Completed Date:  1983-09-09     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0376606     Medline TA:  J Lipid Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  645-51     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Chromatography, Thin Layer
Cyclopentanes / chemical synthesis*
Diazomethane
Hot Temperature
Molecular Conformation
Optical Rotation
Phosphatidylserines / chemical synthesis*
Spectrophotometry, Infrared
Stereoisomerism
Grant Support
ID/Acronym/Agency:
GM-21047-06/GM/NIGMS NIH HHS
Chemical
Reg. No./Substance:
0/Cyclopentanes; 0/Phosphatidylserines; 334-88-3/Diazomethane

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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