Ethyl 3,7,8,10-tetraazatricyclo[7.4.0.0,2,7]trideca-1,3,5,8,10,12-hexaene-4-carboxylate 1g

Ethyl 3,7,8,10-tetraazatricyclo[7.4.0.0,2,7]trideca-1,3,5,8,10,12-hexaene-4-carboxylate 1g