180476-11-3Relevant articles and documents
Synthesis of 3,4-dihydro-5H-1-thia-3,5,6,8-tetraazaacenaphthylenes
Tumkyavichyus
, p. 93 - 95 (2007/10/03)
Reaction of ethyl 5-amino-4-(substituted amino)-2-methylthiothieno[2,3-d]pyrintidine-6-carboxylates with formaldehyde in the presence of hydrochloric acid resulted in the synthesis of the corresponding ethyl 3,4-dihydro-7-methylthio-5H-1-thia-3,5,6,8-tetraazaacenaphthylene-2- carboxylates, which are examples of a new heterocyclic system. 1996 Plenum Publishing Corporation.