反应详情

Following a procedure similar to that described in Preparation 29, but using 1.5 g of (S)-α-(t-butyldimethylsilyloxy)-α-phenylacetaldehyde (prepared as described in Preparation 26), 1.1 g of methyl 4-[2(R)-amino-1-propoxy]phenylacetate (prepared as described in Preparation 27), 10 ml of absolute methanol and 950 mg of sodium cyanoborohydride, the title compound was obtained. [α]D23 -58.4° (c=0.998, chloroform).

1. customthat described in Preparation 29