Hydrochloric Acid → HCID 136373641, compound

Participants

Reaction Conditions

Reaction Steps

The product of Example 269A (0.072 g, 0.15 mmol) in tetrahydrofuran (4 mL) and methanol (0.020 mL, 0.5 mmol) at 0° C. was treated dropwise with a 2.0M solution of lithium borohydride in tetrahydrofuran (0.150 mL, 0.3 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 (15 mL), and the resulting precipitate was collected by filtration and dried. The crude product was chromatographed on silica gel with 2% methanol in chloroform 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 2.45 (s, 3 H) 4.21 (s, 2 H) 6.92 (s, 1 H) 7.15 (m, 5 H) 7.56 (t, J=7.72 Hz, 1 H) 7.67 (d, J=8.09 Hz, 1 H) 7.79 (t, J=7.72 Hz, 1 H) 7.94 (d, J=7.72 Hz, 1 H) 8.17 (d, J=5.52 Hz, 1 H) 14.22 (s, 1 H) 14.82 (s, 1 H). MS (ESI−) m/z 465 (M−H)−.

Provenance & Evidence