Hydrochloric Acid → N4-(3,4-ethylenedioxyphenyl)-5-fluoro-N2-(3-hydroxyphenyl)-2,4-primidinediamine

HRID 71430

Reaction equation

Cl[C:2]1[N:7]=[C:6]([NH:8][C:9]2[CH:14]=[CH:13][C:12]3[O:15][CH2:16][CH2:17][O:18][C:11]=3[CH:10]=2)[C:5]([F:19])=[CH:4][N:3]=1.[OH:20][C:21]1[CH:22]=[C:23]([CH:25]=[CH:26][CH:27]=1)[NH2:24].Cl>CO.O>[CH2:17]1[CH2:16][O:15][C:12]2[CH:13]=[CH:14][C:9]([NH:8][C:6]3[C:5]([F:19])=[CH:4][N:3]=[C:2]([NH:24][C:23]4[CH:25]=[CH:26][CH:27]=[C:21]([OH:20])[CH:22]=4)[N:7]=3)=[CH:10][C:11]=2[O:18]1

Participants

Conditions

Temperature: 100 °C

Procedure

To a solution of 2-chloro-N4-(3,4-ethylenedioxyphenyl)-5-fluoro-4-pyrimidineamine (0.028 g, 0.1 mmol) in MeOH:H2O (1.8:0.2 mL) was added 3-hydroxyaniline (0.033 g, 0.3 mmol) and heated in a sealed tube at 100° C. for 24 h. The resulting reaction was diluted with H2O (10 mL), acidified with 2N HCl (pH>2), saturated and the resulting solid was filtered to give the desired product, N4-(3,4-ethylenedioxyphenyl)-5-fluoro-N2-(3-hydroxyphenyl))-2,4-pyrimidinediamine (R926210). Purification can be done by filtration through a pad of silica gel using 1-5% MeOH in CH2Cl2 or by crystallization using an appropriate solvent system. 1H NMR (CDCl3+CD3OD): δ 7.76 (bs, 1H), 7.30 (d, 1H, J=2.4 Hz), 7.10 (m, 1H), 7.03 (t, 1H, J=8.1 Hz), 6.89 (dd, 2H, J=2.4 and 9 Hz), 6.78 (d, 1H, J=8.7 Hz), 6.42 (dd, 1H, J=2.4 and 9 Hz), 4.22 (m, 4H); 19F NMR (CDCl3+CD3OD): −47196; LCMS: ret. time: 19.55 min.; purity: 95%; MS (m/e): 355 (MH+).

Workup

customThe resulting reaction
filtrationsaturated and the resulting solid was filtered

Sources & evidence

ORD record: ord-b3b5bf36faab4e0faa809680ca155000
Source dataset: uspto-grants-2014_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08822685B2

Linked notes

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