Absolute Structural Determination of Stevastelin B.
作者:KEI-ICHI SHIMADA、TOMIO MORINO、AKIRA MASUDA、MASAYA SATO、MASAYUKI KITAGAWA、SEIICHI SAITO
DOI:10.7164/antibiotics.49.569
日期:——
of a Penicillium sp. NK374186, is a novel depsipeptide containing three amino acids and 3,5-dihydroxy-2,4-dimethylstearic acid. The stereochemistry of the three amino acids was determined by HPLC analysis, and the relative configuration of the 3,5-dihydroxy-2,4-dimethylstearic acid was elucidated by chemical conversion and NMR analysis. The absolute stereochemistry of stevastelin B was determined by
Stevastelin B,得自青霉菌的培养物。NK374186是一种新颖的二肽,包含三个氨基酸和3,5-二羟基-2,4-二甲基硬脂酸。通过HPLC分析确定三种氨基酸的立体化学,并通过化学转化和NMR分析阐明3,5-二羟基-2,4-二甲基硬脂酸的相对构型。Stevastelin B的绝对立体化学是通过合成方法确定的。