Back to results
US 10,329,261 B1Granted
Method of preparing 6-chloro-5-nitro-2,4-diaminopyrimidine and its application thereof
AssigneeXi'an Taikomed Pharmaceutical Technology Co., Ltd.
InventorsYonghong Tang, Minghui Chang, Chengyuan Liang, Danni Tian, Juan Xia, Kaiqi Shi, Han Li, Xuechuan Wang
Life of this patent
Estimating the term…
Abstract
A method of preparing 6-chloro-5-nitro-2,4-diaminopyrimidine includes: reacting guanidine hydrochloride with ethyl carbamoylacetate and sodium hypochlorite in the presence of a metal nitrate salt and acetate anhydride in an organic solvent.
Claims13
A method of preparing 6-chloro-5-nitro-2,4-diaminopyrimidine comprising:
- reacting guanidine hydrochloride with ethyl carbamoylacetate and sodium hypochlorite in the presence of a metal nitrate salt and acetate anhydride in an organic solvent,
Dependencies are inferred from the claim text.