RES
1r:r1
REP
REP1:2o(4+2)2d=-1--1
RES
2b:a-dgro-dgal-NON-2:6|1:a|2:keto|3:d|9:d
3s:amino
4s:n-acetyl
5s:acetyl
LIN
1:2d(5+1)3n
2:2d(7+1)4n
3:2o(8+1)5n