Hydrochloric Acid → (alphaS)-alpha-Aminocyclohexaneacetic acid

Participants

Reaction Steps

HCl (1.717 g, 6.87 mmol), HATU (2.618 g, 6.89 mmol) and diisopropylethyl amine (4.00 mL, 23.0 mmol) were added to a solution of the compound from Example 1, step 2 (1.704 g, 6.24 mmol) in anhydrous DMF (10 mL) at RT. The reaction was stirred at RT for 2.5 h. The reaction was diluted with saturated aqueous sodium bicarbonate (50 mL) and extracted with ether (150+100 mL). The organic phases were washed with water (100+50 mL), dried (MgSO4) and concentrated in vacuo to give 2.994 g of a yellow oil.

Provenance & Evidence