反应详情

To a solution of crude 2-amino-2-(7-(heptyloxy)quinolin-3-yl)propanoic acid (600 mg, 1.8 mmol) in dry THF (30 mL) was added LAH (138 mg, 3.6 mmol, 2 eq.) at 0° C. under N2. The mixture was warmed to room temperature for 3 h. Then to the reaction mixture was added water (1 mL), diluted (EA), filtered and dried (Na2SO4), evaporated to dryness to give the crude product, which was purified by prep-HPLC to give desired compound as white solid (200 mg, yield 35%). ESI-MS: 317 (M+H)+. 1H NMR (300 MHz, CDCl3) δ: 0.90 (t, 3H), 1.32-1.42 (m, 6H), 1.48-1.52 (m, 2H), 1.53 (s, 3H), 1.82-1.89 (m, 2H), 2.34 (brs, 3H), 3.66-3.69 (d, 1H), 3.81-3.84 (d, 1H), 4.08 (t, 2H), 7.11-7.14 (m, 1H), 7.26 (s, 1H), 7.57-7.59 (d, 1H), 8.10 (s, 1H), 8.83 (s, 1H). HPLC: 214 nm: 98.948%, 254 nm: 99.526%.

1. filtrationfiltered
2. dry with materialdried (Na2SO4)
3. customevaporated to dryness
4. customto give the crude product, which
5. customwas purified by prep-HPLC