On January 31, 1986, Boehm, R.; Pech, R.; Haubold, Gudrun; Hannig, E. published an article.Computed Properties of 42518-42-3 The title of the article was Thieno compounds. Part 5. Base substituted thieno[2,3-d]pyrimidines. And the article contained the following:
Thienopyrimidines I and II [R = Cl, substituted NH2; R1 = substituted NH2] were prepared by the amination of I or II (R, R1 = Cl). Stepwise amination of I or II (R, R1 = Cl) gave mixed diaminothienopyrimidines. The experimental process involved the reaction of 2,4-Dichloro-5,6-dimethylthieno[2,3-d]pyrimidine(cas: 42518-42-3).Computed Properties of 42518-42-3
The Article related to chlorothienopyrimidine amination, thienopyrimidinamine, aminothienopyrimidine, Heterocyclic Compounds (More Than One Hetero Atom): Pyrimidines and Quinazolines and other aspects.Computed Properties of 42518-42-3
Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia