反应详情

The title compound was prepared from (S)-4-{2-[2-hydroxy-3-(4-hydroxy-3-hydroxymethyl-phenoxy)propylamino]ethyl}phenoxymethyl-(3-benzyloxypropyl)phosphinic acid, n-butyl ester according to a modification of the procedure described in Example 5. Acidification to pH 3.5 with 1M hydrochloric acid followed by C18 reverse phase chromatography, eluting with water-methanol (30%) and freeze drying of the resultant foam gave the title compound as a solid.

1. washeluting with water-methanol (30%)
2. customfreeze drying of the resultant foam