HCID 86610282, compound → HCID 178454706, compound

Participants

Reaction Steps

Following the general nucleophilic carbamoylation procedure, tranexamic acid (472 mg, 3.0 mmol) and 1-[(2,5-dioxopyrrolidinyl)oxycarbonyloxy]propyl butanoate (575 mg, 2.0 mmol) were reacted in the MTBE/acetone/water mixture (16 mL) to yield the title compound 29 (408 mg, 62% yield) as a white powder after work-up and mass-guided preparative HPLC purification. 1H NMR (400 MHz, DMSO-d6): δ=0.81-0.94 (br. m, 8H), 1.17-1.38 (br. m, 3H), 1.47-1.58 (m, 2H), 1.64-1.75 (m, 4H), 1.83-1.92 (br. m, 2H), 2.10 (tt, J=12.0, 3.6 Hz, 1H), 2.26 (t, J=7.2 Hz, 2H), 2.75-2.88 (m, 2H), 6.55 (t, J=5.2 Hz, 1H), 7.42 (t, J=5.6 Hz, 1H), 11.97 (br. s, 1H). MS (ESI) m/z 352.18 (M+Na)+; 328.14 (M−H)−.

Provenance & Evidence