1 S8Y 5-[[[(1r)-2-(tert-butylamino)-2-oxidanylidene-1-phenyl-ethyl]carbamoyl-methyl-amino]methyl]-1,3-benzodioxole-4-carboxylic acid 1.000 2 7NV 5-[[[(1s)-2-(butylamino)-2-oxidanylidene-1-phenyl-ethyl]carbamoyl-methyl-amino]methyl]-1,3-benzodioxole-4-carboxylic acid 0.882 3 WOP 5-[[methyl-[[(1s)-2-oxidanylidene-1-phenyl-2-[(phenylmethyl)amino]ethyl]carbamoyl]amino]methyl]-1,3-benzodioxole-4-carboxylic acid 0.763