Synthetic Studies on Glycosphingolipids from Protostomia Phyla: Synthesis of Amphoteric Glycolipid Analogues Containing a Phosphocholine Residue from the Earthworm Pheretima hilgendorfi.
作者:Noriyasu HADA、Koji SATO、Jun-ichiro SAKUSHIMA、Yukihiro GODA、Mutsumi SUGITA、Tadahiro TAKEDA
DOI:10.1248/cpb.49.1464
日期:——
Two kinds of amphoteric glycosphingolipid analogues from the earthworm Pheretima hilgendorfi were synthesized as follows: The key reaction is a coupling of a phosphocholine group at the position C-6 of 1 and 6 which was attempted using 2-chloro-2-oxo-1,3,2-dioxaphospholane, followed by reaction of the resulting cyclic phosphate intermediate with anhydrous trimethylamine to give 2 and 7. Subsequent debenzylation afforded target compounds (3,8). Their ability to inhibit the histamine release in vitro was examined.
从蚯蚓Pheretima hilgendorfi中合成了两种两性神经酰胺糖脂类似物,其关键反应是将磷酰胆碱基团引入1和6的C-6位置,采用2-氯代-2-氧代-1,3,2-二氧磷环烷进行偶联反应,然后与无水三甲胺反应形成环状磷酸酯中间体,得到2和7。进一步脱苄基得到目标化合物(3,8)。考察了它们在体外抑制组胺释放的能力。