Trifluoroacetic acid → cyclopentyl-3-((3-(4-(methylsulfonamido)phenyl)-4-oxo-4H-chromen-7-yl)ethynyl)azetidine-1-carboxylate

Reaction equation

[NH:1]1[CH2:4][CH:3]([C:5]#[C:6][C:7]2[CH:16]=[C:15]3[C:10]([C:11](=[O:28])[C:12]([C:17]4[CH:22]=[CH:21][C:20]([NH:23][S:24]([CH3:27])(=[O:26])=[O:25])=[CH:19][CH:18]=4)=[CH:13][O:14]3)=[CH:9][CH:8]=2)[CH2:2]1.FC(F)(F)C(O)=O.[C:36](=O)([O:43]N1C(=O)CCC1=O)[O:37][CH:38]1[CH2:42][CH2:41][CH2:40][CH2:39]1.C(N(C(C)C)CC)(C)C>ClCCl>[CH:38]1([O:37][C:36]([N:1]2[CH2:4][CH:3]([C:5]#[C:6][C:7]3[CH:16]=[C:15]4[C:10]([C:11](=[O:28])[C:12]([C:17]5[CH:22]=[CH:21][C:20]([NH:23][S:24]([CH3:27])(=[O:26])=[O:25])=[CH:19][CH:18]=5)=[CH:13][O:14]4)=[CH:9][CH:8]=3)[CH2:2]2)=[O:43])[CH2:42][CH2:41][CH2:40][CH2:39]1