Annulated analogues of the anti-HIV compound MKC-442 were synthesized from 6-benzoyl-5-ethyl-2,4-dimethoxypyrimidine (4) by reaction with Zn/NH4Cl and 3-bromopropene. The intermediate homoallylic alcohol is subjected to a ring closure reaction by treatment with bromine either directly or after O-benzylation to give 5,6-dihyddropyrrolo[1,2-c]pyrimidinones. No activity against HIV was observed, neither for the annulated analogues nor the derivatives synthesized from 4. Only compound 4 showed activity against HIV-1.
通过与 Zn/NH4Cl 和
3-溴丙烯反应,从 6-苯甲酰基-5-乙基-2,4-二
甲氧基嘧啶(4)合成了抗艾滋病毒化合物 MKC-442 的环状类似物。通过直接或在 O-苄基化后用
溴处理,中间的均烯丙基醇会发生闭环反应,生成 5,6-二氢
吡咯并[1,2-c]
嘧啶酮。无论是环化类似物还是由 4 合成的衍
生物,都没有发现对 HIV 的活性。