Ethanol → 2-(6-Methoxypyridin-3-yl)-1,3-benzothiazol-6-amine

HRID 1698077Notes

Reaction equation

F[C:2]1[N:7]=[CH:6][C:5]([C:8]2[S:9][C:10]3[CH:16]=[C:15](OC)[CH:14]=[CH:13][C:11]=3[N:12]=2)=[CH:4][CH:3]=1.[NH2:19]CC1C=NC=CC=1.[CH2:27]([OH:29])C>O>[CH3:27][O:29][C:2]1[N:7]=[CH:6][C:5]([C:8]2[S:9][C:10]3[CH:16]=[C:15]([NH2:19])[CH:14]=[CH:13][C:11]=3[N:12]=2)=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 100 °C

Procedure

A mixture of 2-(6-fluoropyridin-3-yl)-6-methoxy-1,3-benzothiazole (0.10 g, 0.38 mmol) and 3-(aminomethyl)pyridine (1.0 mL, 9.5 mmol) in ethanol (4 mL) was heated at 100° C. for 9 minutes in a microwave reactor. The mixture was diluted with water, then cooled to r.t. and the formed precipitate was collected by filtration and dried. The crude product was purified by prep. HPLC to give the title compound (71 mg) as a solid. 1H NMR (CHLOROFORM-d) δ 8.75 (d, 1H) 8.66 (d, 1H) 8.56 (dd, 1H) 8.11 (dd, 1H) 7.89 (d, 1H) 7.66-7.76 (m, 1H) 7.34 (d, 1H) 7.26-7.31 (m, 2H) 7.07 (dd, 1H) 6.50 (d, 1H) 5.18 (t, 1H) 4.67 (d, 2H) 3.90 (s, 3H); MS m/z (M+H) 348.9.

Workup

temperaturecooled to r.t.
filtrationthe formed precipitate was collected by filtration
customdried
customThe crude product was purified by prep

Sources & evidence

ORD record: ord-409037e293694a51bae1d7e86cdffa6e
Source dataset: uspto-grants-2012_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08163928B2

Reaction notes

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