transformed microbiologically by the fungal strain Curvularia clavata Jain. Progesterone (I) was added as substrate when the microorganism reached its exponential growth phase. Three substances were isolated after the fermentation: a non-steroidal substance, radicinin (II), which has been established to be a metabolic product of the fungus and acts as a phytotoxin, and two steroidal substances which resulted
                                    黄体酮通过真菌菌株Curvularia clavata Jain在微
生物学上转化。当微
生物达到其指数生长期时,添加
黄体酮(I)作为底物。发酵后分离出三种物质:一种非甾体物质,Radicinin(II),已被确定为真菌的代谢产物并起植物毒素的作用;以及两种甾体物质,其是由于对
黄体酮的真菌酶促作用而产生的。分子。通过1H-核磁共振,质谱以及红外和紫外分析来阐明每种微
生物代谢物的结构,并通过高压
液相色谱法测定产率。
孕酮代谢物的特征是7α,14α-二羟基孕烯-4-烯-3,20-二酮(III)和11β,14α-二羟基孕烯-4-烯-3,20-二酮(IV)。这些甾体产物结构的证据来自乙酰化和脱
水产生的衍
生物。