| 摘要 |
<p>The present invention provides an industrially advantageous production method of compound (V) having a steroid C17,20 lyase inhibitory action, which affords this compound in a high yield with a less number of steps without using a heavy metal compound: <CHEM> wherein ring A is an optionally substituted imidazole ring, R is an optionally substituted hydrocarbon group or a heterocyclic group, and R<1>, R<2>, R<3>, R<4>, R<5>, R<6> and R<7> are each a hydrogen atom, an optionally substituted hydrocarbon group, OH, SH or NH2, an acyl group or a halogen and the like.</p> |
