0 B15R0.2250 CCCC[C@@H](C(O)=O)NC(OC(C)(C)C)=O AK-81138 [0,1,1,0,0,0|2,0,0]=4 1 B15R0.2250 CCCC[C@H](NC(OC(C)(C)C)=O)C(O)=O AK106121 [0,1,1,0,0,0|2,0,0]=4 2 B15R0.2250 CSCC[C@H](C(O)=O)NC(OC(C)(C)C)=O AK-49853 [0,1,1,0,0,0|1,0,0]=3 3 B15R0.2250 O=C(O)C(NC(OC(C)(C)C)=O)CCSC AK170161 [0,1,1,0,0,0|1,0,0]=3 4 B15R0.2250 O=C(O)[C@@H](NC(OC(C)(C)C)=O)CCSC AK141972 [0,1,1,0,0,0|1,0,0]=3