been described. The products are consistent with a mechanism of oxidation at C-6 in which the stereochemistry of substitution at C-6 is controlled by stereoelectronic interactions in the substrate, and is not dictated by enzymic constraint during the reaction. The carbon-13 nuclear magnetic resonance spectra of several B-nor-Δ4 and Δ5 steroids have been presented.
已经描述了 B-norandrost-4-ene-3-ones 和 B-nor-3β-hydroxyandrost-5-enes 与根霉 A
TCC 11145 的孵化。产物与 C-6 处的氧化机制一致,其中 C-6 处取代的立体
化学由底物中的立体电子相互作用控制,而不是由反应过程中的酶约束决定。已经给出了几种 B-nor-Δ4 和 Δ5 类
固醇的碳 13 核磁共振谱。