180913-22-8

(E)-4-(tert-Butoxycarbonylamino)but-2-enoic acid (2E)-4-{[(tert-butoxy)carbonyl]amino}but-2-enoic acid trans 4-{[(tert-Butoxy)carbonyl]amino}but-2-enoic acid 2-Butenoic acid, 4-[[(1,1-dimethylethoxy)carbonyl]amino]-, (2E)- 2-Butenoicacid,4-[[(1,1-dimethylethoxy)carbonyl]amino]-,(2E)-(9CI) (2E)-4-{[(tert-butoxy)carbonyl]amino}but-2-enoic acid(2E)-4-(tert-butoxycharbonyl-amino-)butan-2-enoic acid