RES
1b:x-lrib-HEX-1:5|2:d|6:d
2b:a-lrib-HEX-1:5|2:d|6:d
3b:a-lrib-HEX-1:5|2:d|6:d
4b:a-lrib-HEX-1:5|2:d|6:d
5s:methyl
LIN
1:1o(3+1)2d
2:2o(3+1)3d
3:2o(4+1)4d
4:4o(3+1)5n