Sulfobacins A and B, Novel von Willebrand Factor Receptor Antagonists. II. Structural Elucidaffon.
摘要:
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。
Synthesis of sulfobacin A and B, new sulfonolipids isolated from Chryseobacterium sp.
作者:Hirosato Takikawa、Shin-etsu Muto、Dai Nozawa、Akihiro Kayo、Kenji Mori
DOI:10.1016/s0040-4039(98)01456-7
日期:1998.9
Sulfobacin A (1) and B (2), new sulfonolipids isolated from Chryseobacterium sp. as von Willebrand factor antagonists, were synthesized stereoselectively by starting from l-cysteine.
问题:舒洛巴星 B 的新用途。 解决方案:根据下式(I)所示的一种抗炎剂,其活性成分含有舒洛他星 B 或其药学上可接受的盐或溶液。 sulphobacin B 在体外实验系统中具有巨噬细胞增殖抑制活性,在体外和体内实验系统中具有 TNF 生成抑制活性和转录因子 NF-κB 核转移抑制活性,在体内实验系统中可发挥抗炎作用。 [部分图表] 图 2.
An Efficient Synthesis of Sulfobacin A (Flavocristamide B), Sulfobacin B, and Flavocristamide A
作者:Takayuki Shioiri、Naoko Irako
DOI:10.1016/s0040-4020(00)00768-7
日期:2000.11
Sulfobacin A (flavocristamide B, 1), sulfobacin B (2), and flavocristamide A (3), biologically active sulfonolipids, have been efficiently synthesized utilizing the asymmetric aldol reaction of the Schiff base 8 derived from glycine eater and (+)-2-hydroxy-3-pinanone (HyPN). (C) 2000 Elsevier Science Ltd. All rights reserved.
Synthesis of sulfobacin B
作者:Naoko Irako、Takayuki Shioiri
DOI:10.1016/s0040-4039(98)01178-2
日期:1998.8
Sulfobacin B (2), a novel von Willebrand factor (VWF) receptor antagonist isolated from the culture broth of Chryseobacterium sp. NR 2993, was efficiently synthesized for the first time. (C) 1998 Elsevier Science Ltd. All rights reserved.