Acetic Acid → HCID 58438177, compound

Participants

Reaction Steps

To a solution of Example 45 (TFA salt, 7 mg, 0.01 mmol) in DCM (0.5 ml) were successively added AcOH (0.001 ml, 0.021 mmol), formaldehyde (37% in water, 0.002 ml, 0.021 mmol) and NaBH(OAc)3 (4.4 mg, 0.021 mmol) at RT. The reaction mixture was stirred at RT for 1 h, then diluted into DCM and washed with a 2M aqueous Na2CO3 solution. The organic phase was dried over Na2SO4, filtered and evaporated to dryness. The crude material was purified by reverse phase prep-HPLC (Waters system) to yield the title compound (TFA salt, 7.4 mg, 0.01 mmol, quant.) as a colorless solid. HPLC: AtRet=2.11 min; LC-MS: m/z 576.3 [M+H]+; 1H NMR (500 MHz, DMSO-d6): 0.83-0.92 (2t, J=7.5, 3H, mixture of diastereoisomers), 1.10-1.20 (2t, J=6.1, 3H, mixture of diastereoisomers), 1.44-1.67 (m, 4H), 1.69-1.87 (m, 2H), 2.04-2.19 (m, 1H), 2.65-2.81 (m, 5H), 2.84-2.93 (m, 3H), 3.08-3.19 (m, 1H), 3.22-3.41 (m, 3H), 3.56 (d, J=20.0, 1H), 3.72 (s, 3H), 3.91 (d, J=20.0, 1H), 4.17-4.27 (m, 1H), 5.91-5.96 (m, 1H), 6.58-6.63 (m, 2H), 6.83 (s, 1H), 6.88-6.94 (m, 2H), 6.98-7.02 (m, 1H), 7.32-7.37 (m, 4H).

Provenance & Evidence