0  B20R0.101343  O=C(O)[C@@H](NC(OC(C)(C)C)=O)CCNC(OCC=C)=O      AK-61257 [0,0,0,0,0,1|0,0,0]=1
1  B17R0.17514  O=C(O)[C@H](NC(OC(C)(C)C)=O)CCC(OC)=O      AK170256 [2,0,0,0,0,0|1,0,0]=3
2  B17R0.17514  O=C(OC)CC[C@@H](C(O)=O)NC(OC(C)(C)C)=O      AK-43499 [2,0,0,0,0,0|1,0,0]=3