1 HE0 (2r,4s)-2-[(1r)-1-{[(6s)-6-carboxy-6-(glycylamino)hexanoyl]amino}-2-oxoethyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid 1.000 2 HJ3 (2r,4s)-2-[(1r)-1-{[(6s)-6-amino-6-carboxyhexanoyl]amino}-2-oxoethyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid 0.800