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