New synthesis of 2-thio-paf and related compounds as substrates of PAF acetylhydrolase and phospholipase A2.
作者:Masakazu MURATA、Shigekazu IKOMA、Kazuo ACHIWA
DOI:10.1248/cpb.39.1335
日期:——
2-Thio-PAF and related compounds (1a-c) as substrates of PAF acetylhydrolase and phospholipase A2 were synthesized stereoselectively from optically active 2-O-benzylglycerol monoacetate.
Synthesis of 2-Thio-platlet Activating Factor and Related Compounds.
作者:Masakazu MURATA、Hiroshi UCHIDA、Kazuo ACHIWA
DOI:10.1248/cpb.40.2849
日期:——
2-Thio-platlet-activating factor and related compounds as substrates of platlet activating factor acetylhydrolase and phospholipase A2 were synthesized from optically active 2-O-benzylglycerol monoacetate.
Stereospecific synthesis of PAF analogues. Preparation of 1-hexadecyl 2-thioacetyl-2-deoxyglycerophosphocholine (2-ThioPAF)
作者:Suresh K Bhatia、Joseph Hajdu
DOI:10.1016/s0040-4039(00)95406-6
日期:1987.1
BHATIA, SURESH K.;HAJDU, JOSEPH, SYNTHESIS,(1989) N, C. 16-20
作者:BHATIA, SURESH K.、HAJDU, JOSEPH
DOI:——
日期:——
Stereospecific Synthesis of 2-Substituted Ether Phospholipids
作者:Suresh K. Bhatia、Joseph Hajdu
DOI:10.1055/s-1989-27132
日期:——
A new stereospecific synthesis of biologically active 2-substituted ether phospholipids is reported. The synthesis is based upon 1) using D-α,β-isopropylideneglycerol-γ-tosylate to provide the chiral center, 2) introducing the sn-2-thio function by nucleophilic sulfur displacement of the p-nitrobenzenesulfonyl-activated secondary glycerol function, and 3) elaborating the sn-3-phosphorylcholine moiety either by the β-bromoethyl phosphodichloridate-trimethylamine sequence, or via phosphorylation using 2-chloro -2-oxo-1,3,2-dioxaphospholane followed by nucleophilic ring opening of the phosphotriester with trimethylamine. Through the use of intermediates that became available from the sequence new sn-2-thioacyl and sn-2-thiomethyl ether phospholipids were prepared. The synthetic compounds include chromogenic substrates of phospholipase A2 enzymes, a highly potent antihypertensive ether phospholipid and a structural analogue of antitumor active alkylphosphoglycerides. The synthetic methods developed have a great deal of flexibility providing convenient routes to a wide range of structurally variable ether phospholipids for physicochemical and enzymological studies.