.so /usr/bwk/talks/vg.mac .vg .cstart # this is the structure of penicillin G, an antibiotic size 14 R1: ring4 pointing 45 put N at 2 doublebond -135 from R1.V3 ; O backbond up from R1.V1 ; H frontbond -45 from R1.V4 ; N H above N bond left from N ; C doublebond up ; O bond length .1 left from C ; CH2 bond length .1 left benzene pointing left R2: flatring5 put S at 1 put N at 4 with .V5 at R1.V1 bond 20 from R2.V2 ; CH3 bond 90 from R2.V2 ; CH3 bond 90 from R2.V3 ; H backbond 170 from R2.V3 ; COOH

nd # this is the structure of penicillin G, an antibiotic R1: ring4 pointing 45 put N at 2 doublebond -135 from R1.V3 ; O backbond up from R1.V1 ; H frontbond -45 from R1.V4 ; N H above N bond left from N ; C doublebond up ; O bond length .1 left from C ; CH2 bond length .1 left benzene pointing left R2: flatring5 put S at 1 put N at 4 with .V5 at R1.V1 bond 20 from R2.V2 ; CH3 bond 90 from R2.V2 ; CH3 bond 90 from R2.V3 ; H backbond 170 from R2.V3 ; COOH