ref: 7e6d7d36f83f05f372cfbce43534a2747bfc39c3
dir: /test/lsd1.p/
.cstart B: benzene pointing right F: flatring pointing left put N at 5 double 3,4 with .V1 at B.V2 H below F.N R: ring pointing right with .V4 at B.V6 front bond right from R.V6 ; H W: ring pointing right with .V2 at R.V6 put N at 1 double 3,4 bond right from W.N ; CH3 back bond -60 from W.V5 ; H bond up from W.V5 ; C doublebond up from C ; O bond right from C ; N bond 45 from N ; C2H5 bond 135 from N ; C2H5 .cend