IUPAC: ethyl 12-ethynyl-9-(pyridin-2-yl)-2,4,8-triazatricyclo[8.4.0.0^{2,6}]tetradeca-1(14),3,5,8,10,12-hexaene-5-carboxylate

SMILES: CCOC(=O)c1ncn-2c1CN=C(c1ccccn1)c1cc(ccc-21)C#C |t:12|