Photocyclization of enamides. XXVI Photochemical synthesis of yohimban, epiyohimban, and alloyohimban, basic skeletal structures of yohimbine- and reserpine-type alkaloids.
作者:TAKEAKI NAITO、OKIKO MIYATA、YUKIKO TADA、YOSHINO NISHIGUCHI、TOSHIKO KIGUCHI、ICHIYA NINOMIYA
DOI:10.1248/cpb.34.4144
日期:——
Photocyclization of two enamides (2a and 2b) has provided a new entry for the construction of three yohimbans, yohimban (5a), epiyohimban (5b), and alloyohimban (5c), which are basic structures of yohimbine- and reserpine-type alkaloids.
两个烯酰胺(2a 和 2b)的光环化为三个育亨班的构建提供了新的切入点,即育亨班(5a)、表育亨班(5b)和合金育亨班(5c),它们是育亨宾和间苯二酚类生物碱的基本结构。