Methanesulfonic Acid → HCID 86713641, compound

Participants

Reaction Steps

A 25 mg/mL solution of methanesulfonic acid in DCM (0.424 mL, 0.110 mmol) was added to a solution of 1-(5-(7-amino-1-ethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-3-yl)-4-chloro-2-fluorophenyl)-3-phenylurea (45 mg, 0.100 mmol) in DCM (4 mL), the mixture stirred for 15 min. and then evaporated at reduced pressure to give a solid. The solid was dissolved in MeCN and water, frozen, and lyophilized to give 1-(5-(7-amino-1-ethyl-2-oxo-1,2-dihydro-1,6-naphthyridin-3-yl)-4-chloro-2-fluorophenyl)-3-phenylurea methanesulfonate (1.4 equiv.) (53 mg, 97% yield). 1H NMR (400 MHz, DMSO-d6): δ 9.12 (s, 1H), 8.76 (s, 1H), 8.56 (s, 1H), 8.21 (d, 1H), 7.92 (s, 1H), 7.90 (br s, 2H), 7.60-7.56 (m, 1H), 7.42-7.40 (m, 2H), 7.28-7.24 (m, 2H), 6.98-6.95 (m, 1H), 6.74 (s, 1H), 4.12 (q, 2H), 2.34 (s, ˜4H), 1.23 (t, 3H); MS (ES-API) m/z: 452.1 [M+H]+.

Provenance & Evidence