Mirabimides A–D, new N-acylpyrrolinones from the blue-green alga Scytonema mirabile
作者:Shmuel Carmeli、Richard E. Moore、Gregory M.L. Patterson
DOI:10.1016/s0040-4020(01)96119-8
日期:——
(Dillwyn) Bornet (strain BY-8-1), is N-[2-(N,N-dimethylleucyl)oxy-3-methylpentanoyl-N-methylvalyl-prolyl]-4-methoxy-5-isopropyl-3-pyrrolin-2-one. Mirabimides B–D are the valyl, 2-oxy-3-methylbutanoyl, and N-acetyl-N-methylleucyl analogs, respectively. The absolute configurations of the five asymmetric carbons in the mirabimides are proposed to be all S, but the assignments for the dimethylleucine units in
Mirabimide A是陆地蓝绿藻Scytonema mirabile(Dillwyn)Bornet(株BY-8-1)的主要酰亚胺,是N- [2-(N,N-二甲基亮氨酰基)氧基-3-甲基戊酰基-N-甲基戊基-脯氨酰基] -4-甲氧基-5-异丙基-3-吡咯啉-2-一。Mirabimides B–D分别是戊基,2-氧-3-甲基丁酰基和N-乙酰基-N-甲基亮基类似物。拟议的氨基甲酸酯类化合物中五个不对称碳的绝对构型全部为S,但A–C中的二甲基亮氨酸单元和B–D中的羟基酸单元的分配是暂定的。