Diisopropylamine → HCID 71544290, compound

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of diisopropylamine (0.28 mL, 1.9 mmol) in THF (10 mL) at −60° C. was added n-BuLi (1.6 M, 2.48 mL) slowly. The reaction mixture was stirred for 30 min at −10° C., cooled to −78° C., and a solution 2-(1H-pyrazol-4-yl)thiazole (200 mg, 1.3 mmol) in THF (5 mL) added dropwise for 30 minutes. 4-Acetyl pyridine (0.07 mL, 0.000674 mmol) in THF (2 mL) was then added and the reaction mixture stirred for additional 1 hour at −78° C. The work up was done as described in Example 23, Step 2, to obtain crude product. The crude product was purified by preparative TLC (mobile phase: 70% ethyl acetate in hexane) to give racemic 1-(2-(1H-pyrazol-4-yl)thiazol-5-yl)-1-(pyridin-4-yl)propan-1-ol as pale yellow solid (134 mg, 35% yield) in 99% HPLC purity. 1H NMR (400 MHz, DMSO-d6): δ 13.18 (br s, 1H), 8.50 (d, 2H), 8.22 (br s, 1H), 7.85 (br s, 1H), 7.63 (s, 1H), 7.43 (d, 2H), 6.28 (s, 1H), 2.32-2.24 (m, 2H), 0.75 (t, 3H); LC-MS m/z calculated for [M+H]+ 287.09. found 287.1.

Provenance & Evidence