Methanol → HCID 89690832, compound

Participants

Reaction Steps

A solution of methyl 5-(6-(benzo[d]thiazol-6-ylamino)-4-(isopropylamino)pyridin-3-yl)-1,3,4-oxadiazole-2-carboxylate (200 mg) in THF (10 mL):MeOH (10 mL) was cooled to 0° C. Added LiBH4 (3 equiv.) in portions to the reaction mixture, stirred for 30 min at 0° C. Gradually the reaction temperature was raised to room temperature and stirred for 30 min. The reaction was quenched using ice pieces. The reaction mass was concentrated under reduced pressure. The residue obtained was diluted with EtOAc. The organic layer was washed with water. The organic layer was collected, dried over Na2SO4, filtered and concentrated. The crude material obtained was purified by prep HPLC to afford the desired compound, (5-(6-(benzo[d]thiazol-6-ylamino)-4-(isopropylamino)pyridin-3-yl)-1,3,4-oxadiazol-2-yl)methanol. 1H NMR: 400 MHz, DMSO-d6: δ 657.15 (d, J=524681.20 Hz, 6H), 3.71-3.79 (m, 1H), 4.71 (d, J=6.40 Hz, 2H), 5.93 (t, J=6.40 Hz, 1H), 6.21 (s, 1H), 7.36-7.38 (m, 1H), 7.52 (d, J=7.20 Hz, 1H), 7.61 (dd, J=2.00, 8.80 Hz, 1H), 7.97 (d, J=8.80 Hz, 1H), 8.49 (s, 1H), 8.65 (d, J=2.00 Hz, 1H), 9.17 (s, 1H), 9.44 (s, 1H). LC/MS: XBridge Phe 8, 4.6×30 mm, 3.5 μm; Solvent A=2% ACN: 98% H2O: 10 mM NH4COOH; Solvent B=98% ACN: 2% H2O: 10 mM NH4COOH; gradient 0-100% B over 1.5 min (3.2 min run time); retention time: 1.454 min; LCMS (ES-API), m/z 383.2 (M+H). HPLC: Sunfire C18 (150×4.6 mm), 3.5 micron; Solvent A=5% ACN: 95% H2O: 0.05% TFA pH=2.5; Solvent B=95% ACN: 5% H2O: 0.05% TFA pH=2.5; gradient 0-100% B over 15 min (23 min run time); Flow rate: 1.0 μL/min; Retention time: 5.528 min; Purity: 85.66%.

Provenance & Evidence