Figure 1. SMIRKS example.

SMIRKS

[C:1][N:2][C:3](=[O:4])[O:5][C:6][C:20]1[c:21]2[c:22][c:23][c:24][c:25][c:26]2[c:27]3

[c:28][c:29][c:30][c:31][c:32]13.[H:9][C:7]=[O:8]>>[C:1][N:2][C:7].[O:4]=[C:3][O:5]

[C:6][C:20]1[c:21]2[c:22][c:23][c:24][c:25][c:26]2[c:27]3[c:28][c:29][c:30][c:31]

[c:32]13.[O:8][H:9]

Depiction