110508-12-8
[(1S,2R)-10-(dicyclohexylaminosulfonyl)born-2-yl] 3-phenylpropionate
→
110449-44-0
[(1S,2R)-10-(N,N-dicyclohexylaminosulfonyl)born-2-yl] [(2S)-2-(N,N'-di-tert-butoxycarbonyl)]hydrazino-3-phenylpropionate