morphine.chem: .cstart # Example file for chem: # Morphine or C_17H_19NO_3 (CAS-RN: 57-27-2) # # Found at https://en.wikipedia.org/wiki/Morphine # # Prepared by Bernd Warken , # reorganized by Norwid Behrnd . R1: ring6 double 1,2 3,4 5,6 R2: ring6 with .V1 at R1.V3 R3: ring6 with .V1 at R2.V5 double 3,4 bond -150 length 0.28 from R1.V5 ; O backbond -30 length 0.28 from R3.V6 frontbond 120 from R2.V3 ; N Me right of N BP: bond up from N frontbond 50 from R2.V5 bond right to BP.end bond -60 from R1.V6 ; HO frontbond 120 from R2.V4 ; H backbond -120 from R3.V5 ; HO # Local Variables: # mode: Nroff # End: .cend