874801-60-2

BUTTPARK 77\08-25 4-Oxo-3,5,6,8-tetrahydro-4H-9-thia-1,3,7-triaza-fluorene-7-carboxylic acid tert-butyl ester tert-Butyl 4-oxo-1,5,6,8-tetrahydropyrido[4',3':4,5]thieno[2,3-d]pyrimidine-7(4H)-carboxylate tert-Butyl 4-oxo-3,5,6,8-tetrahydropyrido[4',3':4,5]-thieno[2,3-d]pyrimidine-7(4H)-carboxylate tert-butyl 3-oxo-8-thia-4,6,11-triazatricyclo[7.4.0.0^{2,7}]trideca-1(9),2(7),5-triene-11-carboxylate Pyrido[4',3':4,5]thieno[2,3-d]pyrimidine-7(4H)-carboxylic acid, 1,5,6,8-tetrahydro-4-oxo-, 1,1-dimethylethyl ester