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