中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
5-甲氧基尿苷 | 5-methoxyuridine | 35542-01-9 | C10H14N2O7 | 274.23 |
The synthesis of 5-cyanomethoxy-2-thiouracil (5b) is described. The acid catalysed ethanolysis of 5b leads to 5-ethoxycarbonylmethoxy-2-thiouracil (5a). Condensations of 5-methoxy-2-thiouracil (5) and 5a with the sugar component 7 using the “silyl method” yield peracylated 5-methoxy-2-thiouridine (8) and 5-ethoxycarbonylmethoxy-2-thiouridine (8a), which under treatment with sodium methanolate/methanol afford title 5-methoxy-2-thiouridine (1) (s2mo5U) and 5-methoxycarbonylmethoxy-2-thiouridine (2) (s2mcmo5U), respectively