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Following the general nucleophilic carbamoylation procedure for the formation of the corresponding sodium carboxylates of acyloxyalkyl carbamates of tranexamic acid, 3.434 g (10.0 mmol) of trans-4-{[1-(2-methylpropanoyloxy)-2-methylpropoxycarbonyl]aminomethyl}-cyclohexanecarboxylic acid 44 was reacted with 840.1 mg (10.0 mmol) of sodium bicarbonate (NaHCO3) in 60 mL of a mixture of acetonitrile and water (1:2) to yield 3.654 g (quant.) of the title compound 45 as a colorless powder. 1H NMR (400 MHz, DMSO-d6): δ=0.72-0.84 (m, 2H), 0.87-0.92 (m, 6H), 1.04-1.20 (m, 8H), 1.20-1.32 (m, 1H), 1.59-1.73 (m, 3H), 1.74-1.83 (m, 2H), 1.88-1.98 (m, 1H), 2.46-2.56 (m, 1H), 2.72-2.84 (br. m, 2H), 6.42 (d, J=5.6 Hz, 1H), 7.37 (t, J=5.6 Hz, 1H). MS (ESI) m/z 366.14 (M+Na)+; 342.16 (M−H)−.