H_2-Receptor antagonist nizatidine was prepared through the condensation of thiazolyl ring moiety with substituted cysteamine side chain in 52% yield.

• 以会聚合成法制备了H_2受体拮抗剂尼扎替丁。其中噻唑环的合成以二甲胺为原料，收率13．4%25；