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