We can provide you saxagliptin and its intermediates: 1. Saxagliptin361442-04-899% 2. Saxagliptin hydrochloride709031-78-799% 3. Saxagliptin monohydrate945667-22-199% 4. (alphaS)-alpha-[[(1, 1-Dimethylethoxy)carbonyl]amino]-3-hydroxytricyclo[3.3.1.13, 7]decane-1-acetic acid361442-00-498% 5. (1S, 3S, 5S)-3-(Aminocarbonyl)-2-azabicyclo[3.1.0]hexane-2-carboxylic acid tert-butyl ester361440-67-798% 6. (S)-1-Boc-2, 3-dihydro-2-pyrrolecarboxylic acid ethyl ester178172-26-498%