| abstract |
Thieno[2,3-d]pyrimidine compounds of general formula (1) useful as drugs having a cGMP-specific phosphodiesterase inhibiting effect and so on; and a process for the preparation of the same wherein Q is a group represented by the general formula: (CH2)n-N(r1)-C(r2)(r3), CH=CH-CH=CH, or (CH2)m which is bonded to a and b; R1 is hydrogen or C1-C6 alkyl; R2 is C3-C8 cycloalkyl optionally substituted with G1, phenyl optionally substituted with G2, or a saturated or unsaturated heterocyclic group having 1 to 4 heteroatoms selected from among N, O and S and being optionally substituted with G3; and R3 is a saturated or unsaturated heterocyclic group having 1 to 4 heteroatoms selected from among N, O and S and being optionally substituted with G3 or a group represented by the general formula: (CH2)kC(=O)R4 or CH=CHC(O)R4. |