Cl.[CH2:2]([O:4][P:5]([CH:10]([C:18]#[N:19])[CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)(=[O:9])[O:6][CH2:7][CH3:8])[CH3:3]>CCO.[Pt]=O>[CH2:7]([O:6][P:5]([CH:10]([CH2:11][CH:12]1[CH2:13][CH2:14][CH2:15][CH2:16][CH2:17]1)[CH2:18][NH2:19])(=[O:9])[O:4][CH2:2][CH3:3])[CH3:8]Platinum oxide and conc.HCl were added to a solution of diethyl(1-cyano-2-phenylethyl)phosphonate in EtOH, for overnight stirring under hydrogen atmosphere, to obtain diethyl[2-amino-1-(cyclohexylmethyl)ethyl]phosphonate.
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