| 中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 | 
|---|---|---|---|---|
| —— | 3β-hydroxy-16,17-seco-androst-5-ene-16,17-dioic acid-17-amide | 5088-58-4 | C19H29NO4 | 335.444 | 
| (3S,8R,9S,10R,13S,14S,17R)-3,17-二羟基-10,13-二甲基-1,2,3,4,7,8,9,11,12,14,15,17-十二氢环戊烯并[a]菲-16-酮 | 3β,17β-dihydroxyandrost-5-en-16-one | 1159-66-6 | C19H28O3 | 304.43 | 
Several steroidal pyrimidine N-oxides were synthesized by treatment of different N-acyl derivatives of steroidal β-amino-α,β-unsaturated ketones with hydroxylamine. This procedure has been applied to obtain steroidal pyrimidine N-oxides with the heterocyclic ring condensed with rings A and B of the steroidal moiety. Some chemical and spectral properties of these derivatives are discussed.