18678-29-0

3-methyl-2,6,7,8-tetrahydrocyclopenta[2,3]thieno[2,4-d]pyrimidin-1-one 1,5,6,7-Tetrahydro-2-methyl-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-one 4H-Cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-one, 1,5,6,7-tetrahydro-2-methyl- 10-methyl-7-thia-9,11-diazatricyclo[6.4.0.0,2,6]dodeca-1(8),2(6),9-trien-12-one