Document Detail


Drug-phospholipid conjugates as potential prodrugs: synthesis, characterization, and degradation by pancreatic phospholipase A(2).
MedLine Citation:
PMID:  11090844     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The aim of the present study was the synthesis of phospholipids containing a drug molecule instead of a fatty acid. Valproic acid and ibuprofen served as model compounds. The target molecules were synthesized either starting from sn-glycero-3-phosphocholine (1) or using (S)-2-O-benzyl-1-O-tritylglycerol (11) and (R)-2-O-benzyl-1-O-tert-butyldiphenylsilylglycerol (12), respectively, as key intermediates. With respect to the surface properties and the aggregation behavior, the drug-phospholipid conjugates resembled natural phosopholipids. Upon incubation with porcine pancreatic phospholipase A(2), only compounds with a fatty acid in the sn-2 position of the glycerol backbone were degraded. Derivatives with either ibuprofen in the sn-2 position or displaying the unnatural S-configuration were resistant to enzymatic in vitro hydrolysis.
Authors:
M Kurz; G K Scriba
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Chemistry and physics of lipids     Volume:  107     ISSN:  0009-3084     ISO Abbreviation:  Chem. Phys. Lipids     Publication Date:  2000 Oct 
Date Detail:
Created Date:  2000-12-04     Completed Date:  2000-12-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0067206     Medline TA:  Chem Phys Lipids     Country:  IRELAND    
Other Details:
Languages:  eng     Pagination:  143-57     Citation Subset:  IM    
Affiliation:
University of Münster, Department of Pharmaceutical Chemistry, D-48149, Münster, Germany.
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MeSH Terms
Descriptor/Qualifier:
Hydrolysis
Ibuprofen / chemistry*
Magnetic Resonance Spectroscopy
Mass Spectrometry
Pancreas / enzymology*
Phospholipases A / metabolism*
Phosphorylcholine / chemistry*
Prodrugs / chemical synthesis*,  chemistry,  metabolism
Valproic Acid / chemistry*
Chemical
Reg. No./Substance:
0/Prodrugs; 107-73-3/Phosphorylcholine; 15687-27-1/Ibuprofen; 99-66-1/Valproic Acid; EC 3.1.1.-/Phospholipases A

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