(Z)-3-(2-N,N-dimethylaminoethoxyimino)-5α-androstan-6,17-dione 、 (Z)-3β-(2-N,N-dimethylaminoethoxyiminomethyl)-5α-androstan-6α,17β-diol 、 (Z)-3β-(2-N,N-dimethylaminoethoxyiminomethyl)-5α-androstan-6α,17β-diol oxalate 生成 (E)-3β-(2-N,N-dimethylaminoethoxyiminomethyl)-5α-androstan-6,17-dione oxalate