Potassium Carbonate → (3R)-1-(tert-Butoxycarbonyl)-3-[(4-fluorobenzylthio)methyl]pyrrolidine

Participants

Reaction Steps

Using a similar method to that described in Example 93, step 1, (3R)-1-(tert-butoxycarbonyl)-3-[(methanesulfonyloxy)methyl]pyrrolidine (1.5000 g, 5.37 mmol) was reacted with 4-fluorobenzyl mercaptan (1.5511 g, 10.91 mmol) and potassium carbonate (1.1132 g, 8.05 mmol) in DMF (30 ml) at room temperature for 24 h to give 1.7507 g (100%) of the title compound as a colourless oil. δH (360 MHz, CDCl3) 1.45 (9H, s), 1.60 (1H, m), 2.00 (1H, m), 2.44 (2H, m), 2.97 (1H, m), 3.28 (1H, m), 3.46 (2H, m), 3.69 (2H, s), 7.00 (2H, t, J=8.6 Hz), 7.25-7.29 (2H, m). m/e (ES+) 348 (M+Na)+, 326 M+H)+, 270 (M-CMe3 +2H)+.

Provenance & Evidence