197159-27-6
(S)-2-tert-butoxycarbonylamino-5-oxo-7-phenylhept-6-ynoic acid tert-butyl ester
197159-45-8
(S)-α-tert-butoxycarbonylamino-γ-(2-methylthiopyrimidin-4-yl)butyric acid α-tert-butyl ester
197159-52-7
(S)-α-tert-butoxycarbonylamino-γ-(2-methyl-6-propylpyrimidin-4-yl)butyric acid α-tert-butyl ester
197159-67-4
(S)-α-tert-butoxycarbonylamino-γ-(2-methylsulfonyl-6-propylpyrimidin-4-yl)butyric acid α-tert-butyl ester
197159-49-2
(S)-α-tert-butoxycarbonylamino-γ-(2-methylthio-6-propylpyrimidin-4-yl)butyric acid α-tert-butyl ester