Acetonitrile → (3S,4R)-3-Hydroxymethyl-4-({isopropyl-[4-methoxy-3-(3-methoxy-propoxy)-benzoyl]-amino}-methyl)-pyrrolidine-1-carboxylic acid tert-butyl ester

Participants

Reaction Steps

The title compound is prepared in a similar manner as described for Example 9/reaction step H, from (3S*,4R*)-3-(tert-butyl-dimethyl-silanyloxymethyl)-4-({isopropyl-[4-methoxy-3-(3-methoxy-propoxy)-benzoyl]-amino}-methyl)-pyrrolidine-1-carboxylic acid tert-butyl ester (25.0 g, 41.1 mmol) and tetrabutylammonium fluoride trihydrate (19.4 g, 61.6 mmol) in THF (150 mL) as a colorless oil. MS: 495.2 [M+H]+; tR (HPLC, C18 column, 5-100% CH3CN/H2O/6 min, 100% CH3CN/1.5 min, CH3CN and H2O containing 0.1% TFA, flow: 1.5 mL/min): 4.84 min.

Provenance & Evidence