中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2-hydrazinyl-6-phenylpyrimidin-4(3H)-one | 86799-26-0 | C10H10N4O | 202.216 |
6-苯基-2-硫尿嘧啶 | 6-phenyl-2-thiouracil | 36822-11-4 | C10H8N2OS | 204.252 |
Pyrimidin-4-one-2-thione (3) was synthesized via the reaction of thiourea (1) with ethyl benzoylacetate (2) and was taken as a starting material for the present study via its reactions with the halogen-containing reagents 6a-d and lOa-c to give the corresponding thiazolopyrimidines 8, 9 and 12a-c. The 2-hydrazino derivatives 5 were synthesized either via the reaction of 3 or 4 with hydrazine hydrate. Compound 5 reacted with 6a-c and lOa-c to give the corresponding pyrimidotriazines 17a-c and 19 respectively. Also, compound 5 reacted with the active methylene-containing reagents 13 and 2a,b to give the corresponding 2-pyrazolopyrimidines 15 and 22a,b respectively. On the other hand, the triazolopyrimidines 21a,b and 30a,b were also obtained via the reaction of 5 with each of formic acid, acetic anhydride, ethyl chloroformate and carbon disulfide respectively. Some of the newly synthesized heterocyclic derivatives were tested for their biological activity