Sodium Hydroxide → 4-Pyrrolidin-1-ylmethyl-piperidine-1-carboxylic Acid Tert-butyl Ester

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Reaction Steps

To a solution of the product of Example 2 (2.0 g) in DCM (40 mL) was added pyrrolidine (1.0 g) followed by sodium triacetoxyborohydride (2.8 g). The resulting mixture was stirred overnight, and treated with 10% NaOH (20 mL). The resulting mixture was extracted with DCM (300 mL). The combined extracts were washed with water (50 mL) and brine (50 mL), dried (MgSO4), and concentrated under reduced pressure to give the title compound as a light pink-brown oil (2.4 g).

Provenance & Evidence