作者:Sanjay J. Desai、Bharathi R. Prabhu、Newand B. Mulchandani
DOI:10.1016/0031-9422(88)80226-7
日期:1988.1
were isolated from the cold ethanol extract of Piper longum roots, of which six known compounds were identified as cepharadione B, cepharadione A, cepharanone B, aristolactam AII, norcepharadione B, and 2-hydroxy-1-methoxy-4H-dibenzo[de, g]quinoline-4,5(6H)-dione. The three new alkaloids were characterized as 10-amino-4-hydroxy-3-methoxyphenanthrene-l-carboxylic acid lactam [piperolactam A], 10-amino-4-hydroxy-2
摘要 从荠菜冷乙醇提取物中分离出 9 种生物碱,其中 6 种已知化合物为头孢拉酮 B、头孢拉酮 A、头孢拉酮 B、马兜铃内酰胺 AII、去甲头孢拉酮 B 和 2-羟基-1-甲氧基-4H-二苯[de, g]quinoline-4,5(6H)-dione。这三种新的生物碱被表征为 10-氨基-4-羟基-3-甲氧基菲-l-羧酸内酰胺 [哌内酰胺 A]、10-氨基-4-羟基-2,3-二甲氧基菲-l-羧酸内酰胺 [胡椒内酰胺B] 和 2-羟基-1-甲氧基-6-甲基-4H-二苯并[de, g]quinoline-4,5(6H)-dione [piperadione]。