Hydrochloric Acid → HCID 136048792, compound

Participants

Reaction Conditions

Reaction Steps

The product of Example 266A (0.062 g, 0.14 mmol) in tetrahydrofuran (2.5 mL) and methanol (0.012 mL, 0.280 mmol) at 0° C. was treated with dropwise addition of a 2.0M solution of lithium borohydride in tetrahydrofuran (0.105 mL, 0.210 mmol). The reaction was stirred at 25° C. for 1 hour, acidified with 1M hydrochloric acid to a pH of approximately 2-4, diluted with water (8.0 mL), and the resulting precipitate was collected by filtration and dried. The crude product was triturated with methanol/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 3.99 (s, 2 H) 6.22 (t, J=6.62 Hz, 1 H) 7.08 (t, J=7.35 Hz, 1 H) 7.27 (m, 2 H) 7.40 (dd, J=7.54, 4.96 Hz, 1 H) 7.54 (m, 2 H) 7.68 (d, J=8.09 Hz, 2 H) 7.93 (m, 1 H) 8.08 (dd, J=7.72, 1.47 Hz, 1 H) 8.51 (dd, J=4.78, 1.47 Hz). (ESI−) m/z 446 (M−H)

Provenance & Evidence