RES
1r:r1
REP
REP1:5o(2+1)2d=-1--1
RES
2b:a-dgal-HEX-1:5
3b:a-dgro-dgal-NON-2:6|1:a|2:keto|3:d
4s:methyl
5b:b-drib-PEN-1:4
LIN
1:2o(2+2)3d
2:3o(5+1)4n
3:3o(9+1)5d