p. 422 - 428
(2020)ethyl 2-(benzofuran-2-carboxamido)-5,5-dimethyl-5,7-dihydro-4H-thieno[2,3-c]pyran-3-carboxylate
2-(N'-benzylthioureido)-3-ethoxycarbonyl-5,5-dimethyl-5,7-dihydro-4H-thieno[2,3-c]pyran
C21H25NO4S
3-amino-2-cyclohexyl-6,6-dimethyl-5,6-dihydro-8H-pyrano[4',3':4,5]thieno[2,3-d]pyrimidin-4-one
3-Amino-6,6-dimethyl-2-pentyl-3,5,6,8-tetrahydro-pyrano[4',3':4,5]thieno[2,3-d]pyrimidin-4-one