Hydrochloric Acid → HCID 71726647, compound

Participants

Reaction Steps

To a solution of ((S)-tert-butyl (4-methyl-1-(spiro[chromeno[3,4-c]pyridine-5,3′-oxetan]-8-yloxy)pentan-2-yl)carbamate (10 mg, 0.023 mmol) (prepared as described in Example 19, Part D) in dichloromethane (1 mL) cooled to 0° C. was added 1M HCl in diethyl ether (234, 0.023 mmol) dropwise and the solution stirred for 30 min. The reaction was then warmed to room temperature and stirred for 2 h. After completion of reaction, the volatiles were removed under reduced and purified by preparative HPLC to afford product (8-(((S)-2-amino-4-methylpentyl)oxy)-5-(chloromethyl)-5H-chromeno[3,4-c]pyridin-5-yl)methanol (2.08 mg, 5.52 μmol, 24% yield) as a yellow solid. 1H NMR (400 MHz, MeOD) δ 8.82 (m, 1H), 8.69 (m, 1H), 8.35 (m, 1H), 8.09 (m, 1H), 6.94 (m, 1H), 6.82 (s, 1H), 4.36-4.20 (m, 6H), 3.73 (m, 1H), 1.82-1.68 (m, 3H), 1.04 (m, 6H); LCMS (ESI) m/e 377.2 [(M+H)+, calcd for C20H26ClN2O3 377.2]; LC/MS retention time (Method E): tR=1.71 min; HPLC retention time (method A): tR=8.12 min; HPLC retention time (method B): tR=9.87 min.

Provenance & Evidence