Studies on the chemical constituents of rutaceous plants. XLIX. Development of a versatile method for the synthesis of antitumor-active benzo(c)phenanthridine alkaloids. 1. Preparation of various 2,4-bisaryl-4-oxobutyronitriles and 2,4-bisaryl-4-oxobutyramides.
作者:HISASHI ISHII、TSUTOMU ISHIKAWA、TAKEO DEUSHI、KENICHI HARADA、TOSHIKO WATANABE、ETSUKO UEDA、TOSHIAKI ISHIDA、MITSUGI SAKAMOTO、ERI KAWANABE、TSUTOMU TAKAHASHI、YUHICHIRO ICHIKAWA、KAZUE TAKIZAWA、TAKESHI MASUDA、IHSHENG CHEN
DOI:10.1248/cpb.31.3024
日期:——
For the sake of establishment of a versatile synthetic method for benzo [c] phenanthridine alkaloids, improvement of the Robinson synthetic method was examined. Thirteen chalcones (7a-m) were prepared by condensation of two acetophenone derivatives (15 and 16) with eleven benzaldehyde derivatives (19a-k) as fundamental starting materials. Hydrocyanation of these chalcones (7a-l) except one (7m) gave the corresponding 2, 4-bisaryl-4-oxobutyronitriles (8a-l). Eleven 2, 4-bisaryl-4-oxobutyramides (9a-k) were also prepared.
为了建立一种通用的苯并[c]菲啶生物碱合成方法,对Robinson合成方法进行了改进。通过将两个乙酰苯衍生物(15和16)与十一种苯甲醛衍生物(19a-k)缩合,制备了十三种查尔酮(7a-m)作为基本起始材料。除了一个查尔酮(7m)外,这些查尔酮(7a-l)的氰化反应得到了相应的2,4-双芳基-4-氧代丁腈(8a-l)。还制备了十一种2,4-双芳基-4-氧代丁酰胺(9a-k)。