反应详情

A solution of 2-(2-tert-butoxy-2-oxoethyl)indane-2-carboxylic acid from Step B (1.50 g, 5.43 mmol) in EtOAc (100 mL) was saturated with HCl (g) and stood at ambient temperature for 1 h, then concentrated to dryness in vacuo, to give the title compound. MS: m/z=284 (M+Na+CH3CN).

1. concentrationconcentrated to dryness in vacuo