RES
1r:r1
REP
REP1:4o(3+2)2d=-1--1
RES
2b:b-dman-OCT-2:5|1:a|2:keto|3:d
3b:b-drib-PEN-1:4
4b:b-drib-PEN-1:4
5s:acetyl
LIN
1:2o(6+1)3d
2:3o(2+1)4d
3:4o(2+1)5n