
preparation of (2r,4s)-5-(biphenyl-4-yl)-4-[(tert-butoxycarbonyl)amino]-2-methylpentanoic acid_kain industrial additive
background and overview[1] (2r,4s)-5-(biphenyl-4-yl)-4-[(tert-butoxycarbonyl) amino]-2-methylpentanoic acid is a key intermediate in the preparation of sacubitril. sacubitril and valsartan can form th…

preparation of (2r, 3s)-3-(benzoylamino)-2-hydroxyphenylpropionic acid ethyl ester_kain industrial additive
background and overview[1] (2r, 3s)-3-(benzoylamino)-2-hydroxyphenylpropanoic acid ethyl ester is an important synthetic intermediate that can be used to synthesize the anti-cancer drug paclitaxel. th…

preparation of (2r,3s)-3-benzamido-2-hydroxy-3-phenylpropionic acid methyl ester_kain industrial additives
background and overview[1] (2r,3s)-3-benzoylamino-2-hydroxy-3-phenylpropionic acid methyl ester can be passed through 3-hydroxy-4-phenylazetidin-2-one (hpa) it is prepared in two steps and can be used…