A new and efficient strategy for the synthesis of shimofuridin analogs: 2′-O-(4-O-stearoyl-α-l-fucopyranosyl)thymidine and -uridine
作者:Jun Ning、Ying Xing、Fanzuo Kong
DOI:10.1016/s0008-6215(02)00356-7
日期:2003.1
Two shimofuridin analogs: 2'-O-(4-O-stearoyl-alpha-L-fucopyranosyl)thymidine (2) and -uridine (3) have been synthesized using D-arabinose, L-fucose, thymine, uracil, and stearoyl chloride as the starting materials. The synthetic procedures involve the facile preparation of 1-(3,5-di-O-benzyl-beta-D-ribofuranosyl)thymine (9) and -uracil (10) by coupling of 1,2-anhydro-3,5-di-O-benzyl-alpha-D-ribofuranose
使用D-阿拉伯糖,L-岩藻糖,胸腺嘧啶,尿嘧啶和硬脂酰合成了两个shimofuridin类似物:2'-O-(4-O-硬脂酰-α-L-呋喃核糖基)胸苷(2)和-尿苷(3)。氯化物为起始原料。合成方法包括通过偶联1,2-脱水-3,5-轻松制备1-(3,5-二-O-苄基-β-D-呋喃呋喃糖基)胸腺嘧啶(9)和-尿嘧啶(10)。二-O-苄基-α-D-呋喃呋喃糖(8)与甲硅烷基化的胸腺嘧啶和尿嘧啶,然后通过核苷衍生物9和10与2-(2 ,3-二-O-苄基-4-O-硬脂酰基-β-L-呋喃核糖基磺酰基)嘧啶(18)。通过改进的方法由D-阿拉伯糖制备1,2-脱水-3,5-二-O-苄基-α-D-呋喃呋喃糖(8)。