Convenient Synthesis and Conversion of a (Z)-α,β-Didehydroornithine Derivative to α,β-Didehydrokyotorphin
作者:Yasuchika Yonezawa、Takako Hirosaki、Takashi Hayashi、Chung-gi Shin
DOI:10.1055/s-2000-6219
日期:——
Hydrogenolysis of the azido group of methyl (Z)-2-(N-Cbz)amino-5-azidopent-2-enoate, derived by selective reduction and azidation of the side chain carboxyl group of N-protected (Z)-ÎGlu-OMe, gave (Z)-α,β-didehydroornithine derivative (7). The formed 7 was further converted to the basic (Z)-α,β-didehydroarginine and the acid containing (Z)-α,β-didehydrokyotorphin.
通过选择性还原和叠氮化 N 保护的 (Z)-ÎGlu-OMe 的侧链羧基,得到 (Z)-α,β-didehydroornithine 衍生物 (7),对 (Z)-2-(N-Cbz)amino-5-azidopent-2-enoate 的叠氮基进行氢解,得到 (Z)-α,β-didehydroornithine 衍生物 (7)。生成的 7 可进一步转化为碱性 (Z)-δ,δ²-二脱氢精氨酸和含酸的 (Z)-δ,δ²-二脱氢基托吗啡。