Hydrochloric Acid → HCID 136048783, compound

Participants

Reaction Conditions

Reaction Steps

The product of Example 257A (0.038 g, 0.083 mmol) in tetrahydrofuran (1.7 mL) and methanol (0.007 mL, 0.166 mmol) at 0° C. was treated with dropwise addition of a 2.0M solution of lithium borohydride in tetrahydrofuran (0.065 mL, 0.130 mmol). The reaction was stirred at 25° C. for 1 hour, acidified with 1 M hydrochloric acid to a pH of approximately 2-4, diluted with water (5.0 mL), and the resulting precipitate was collected by filtration and dried. The crude product was triturated with dichloromethane/diethyl ether and filtered to give the title compound. The sodium salt of the title compound was prepared according to the procedure of Example 1D. 1H NMR (300 MHz, DMSO-d6) δ ppm 2.35 (s, 3 H) 3.87 (s, 2 H) 6.05 (t, J=6.62 Hz, 1 H) 7.12 (m, 2 H) 7.31 (m, 5 H) 7.56 (t, J=7.54 Hz, 2 H) 7.70 (dd, J=11.95, 7.91 Hz, 2 H) 8.10 (d, J=7.72 Hz, 1 H) 16.28 (s, 1 H). MS (ESI−) m/z459 (M−H)−.

Provenance & Evidence