Sulfobacins A and B, Novel von Willebrand Factor Receptor Antagonists. II. Structural Elucidaffon.
作者:TSUTOMU KAMIYAMA、TAKAYUKI UMINO、YOSHIKO ITEZONO、YUMIKO NAKAMURA、TOMOKO SATOH、KAZUTERU YOKOSE
DOI:10.7164/antibiotics.48.929
日期:——
Sulfobacins A and B are novel von Willebrand factor (vWF) receptor antagonists produced by Chryseobacterium sp. NR 2993. The structures of sulfobacins A and B have been determined to be (2R, 3R)-3-hydroxy-2[(R)-3-hydroxy-15-methylhexadecanamido]-15-methylhexadecanesulfonic acid and (2R, 3R)-3-hydroxy-15-methyl-2-[13-methyltetradecanamido]-hexadecanesulfonic acid, respectively, by various 2D NMR experiments and by methanolysis. The absolute configurations of the sulfobacins were determined by a modified MOSHER'S method. The structures are related to sulfonolipids, major components of the cell envelope of gliding bacteria of the genus Cytophaga.
硫杆菌素 A 和 B 是由 Chryseobacterium sp. NR 2993 产生的新型 von Willebrand 因子(vWF)受体拮抗剂。通过各种二维核磁共振实验和甲醇分解法,确定了磺酸素 A 和 B 的结构分别为(2R, 3R)-3-羟基-2-[(R)-3-羟基-15-甲基十六酰胺基]-15-甲基十六烷磺酸和(2R, 3R)-3-羟基-15-甲基-2-[13-甲基十四酰胺基]-十六烷磺酸。磺酸苷的绝对构型是通过改进的 MOSHER'S 方法确定的。这些结构与细胞噬菌属滑行细菌细胞包膜的主要成分--磺脂有关。