1.cstart
2# This is a structure of morphine, for comparison with the one
3# in the preprint by Broadbent and Norris
4#
5R1:	ring6 double 1,2
6	bond -60 from R1.V6 ; HO
7R2:	ring6 with .V1 at R1.V3
8	bond 60 from R2.V2 ; N
9	bond right from N ; CH3
10R3:	benzene with .V1 at R2.V5
11	bond -120 from R3.V5 ; HO
12# this is the furan ring
13	bond -135 length .3 from R1.V5 ; O
14	bond -45 length .3 from R3.V6
15# this is the odd ring
16	bond up length .1 from N ; BP
17B1:	bond up length .35 from R1.V4
18	bond to BP
19.cend
20