中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
莫能菌素 | monensin | 17090-79-8 | C36H62O11 | 670.882 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 25-O-methylmonensin methyl ester | 116278-62-7 | C38H66O11 | 698.935 |
—— | methyl (2S,3R,4S)-4-[(2S,5R,7S,8R,9S)-2-[(2R,5S)-5-ethyl-5-[(2R,3S,5R)-5-[(2S,3S,5R,6R)-6-methoxy-3,5-dimethyl-6-(2-trimethylsilylethoxymethoxymethyl)oxan-2-yl]-3-methyloxolan-2-yl]oxolan-2-yl]-7-hydroxy-2,8-dimethyl-1,10-dioxaspiro[4.5]decan-9-yl]-3-methoxy-2-methylpentanoate | 150016-33-4 | C44H80O12Si | 829.197 |
NMR evidence shows that so-called non-closed form of monensin A free acid reported to exist in methanol is in fact due to acetal formation at C-25. The 25-alkoxy derivatives retain this conformation even in non-polar media.