| | | 4,5-dimethoxy-12,14-dimethyl-13,14,16-triazatetracyclo[7.7.0.0-¦,Gü+.0-¦-¦,-¦Gü¦]hexadeca-1(16),2,4,6,9,11(15),12-heptaene-10-carboxylic acid CAS:1435999-50-0 Formula: C18H17N3O4 VS-12015 COC1=C(OC)C=C2C(CC3=C(C(O)=O)C4=C(N=C23)N(C)N=C4C) >90% 4,5-dimethoxy-12-methyl-14-oxa-13,16-diazatetracyclo[7.7.0.0-¦,Gü+.0-¦-¦,-¦Gü¦]hexadeca-1(16),2,4,6,9,11(15),12-heptaene-10-carboxylic acid CAS:1435977-18-6 Formula: C17H14N2O5 VS-12013 COC1=C(OC)C=C2C(CC3=C(C(O)=O)C4=C(ON=C4C)N=C23)=C1 >90% 4,5-dimethoxy-14-(propan-2-yl)-13,14,16-triazatetracyclo[7.7.0.0-¦,Gü+.0-¦-¦,-¦Gü¦]hexadeca-1(16),2,4,6,9,11(15),12-heptaene-10-carboxylic acid CAS:1436004-15-7 Formula: C19H19N3O4 VS-12014 COC1=C(OC)C=C2C(CC3=C(C(O)=O)C4=C(N=C23)N(N=C4)C(C >90% |