Synthesis and characterization of a dianionic carbohydrate-based phospholipid
摘要:
A novel carbohydrate-based phospholipid containing a phosphatidic acid head group, bis-(2,3-lauroyl)-1-methoxy-5-ribo-phosphatidic acid (DLRPA), was synthesized and characterized by H-1 NMR, C-13 NMR, and P-31 NMR. This molecule is an analog of dilauroyl phosphatidic acid (DLPA). The T-m of DLRPA decreases with increasing pH in a similar pattern to DLPA, as determined by MDSC. From this thermotropic behavior, the apparent pK(a)s of DLRPA are estimated to be 4 and 8. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.