Scheme 1.

Synthesis of amidine analogs of triazolothienopyrimidine lead structure 1c. Reagents and conditions: (a) described previously;12 (b) 1° amines, PyBOP, CH3CN, DBU, microwave irradiation, 100 °C, 30 min.

Synthesis of amidine analogs of triazolothienopyrimidine lead structure 1c. Reagents and conditions: (a) described previously;12 (b) 1° amines, PyBOP, CH3CN, DBU, microwave irradiation, 100 °C, 30 min.