Water → N-[(3-Aminooxetan-3-yl)methyl]-2-(2,3-dihydro-1,4-benzothiazepin-4(5H)-yl)quinazolin-4-amine

HRID 540203Notes

Reaction equation

[NH2:1][C:2]1([CH2:6][NH:7][C:8]2[C:17]3[C:12](=[CH:13][CH:14]=[CH:15][CH:16]=3)[N:11]=[C:10](Cl)[N:9]=2)[CH2:5][O:4][CH2:3]1.[S:19]1[C:25]2[CH:26]=[CH:27][CH:28]=[CH:29][C:24]=2[CH2:23][NH:22][CH2:21][CH2:20]1.C(N(CC)CC)C.O>CN(C)C=O>[NH2:1][C:2]1([CH2:6][NH:7][C:8]2[C:17]3[C:12](=[CH:13][CH:14]=[CH:15][CH:16]=3)[N:11]=[C:10]([N:22]3[CH2:23][C:24]4[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=4[S:19][CH2:20][CH2:21]3)[N:9]=2)[CH2:5][O:4][CH2:3]1

Participants

Conditions

Temperature: 130 °C

Procedure

To a solution of N-[(3-aminooxetan-3-yl)methyl]-2-chloroquinazolin-4-amine (200 mg, 0.756 mmol) in N,N-dimethylformamide (4 mL) was added 2,3,4,5-tetrahydro-1,4-benzothiazepine (125 mg, 0.756 mmol) and triethylamine (230 mg, 2.268 mmol). After being heated at 130° C. for 4 hours under microwave irradiation, the reaction mixture was poured into water and extracted with ethyl acetate. The organic layer was dried with sodium sulfate, and concentrated in vacuo. The residue was purified by preparative HPLC to afford 42 mg of the desired product as a white solid (yield was 14%). MS obsd. (ESI+) [(M+H)+] 394, 1H NMR (400 MHz, CD3OD) δ ppm 7.75-7.73 (t, J=6.4, 1.2 Hz, 1 H), 7.56-7.53 (m, 1 H), 7.52-7.47 (m, 2 H), 7.43-7.41 (d, J=8.0 Hz, 1 H), 7.24-7.20 (m, 1 H), 7.15-7.08 (m, 2 H), 5.06 (s, 2 H), 4.69-4.67 (d, J=6.8 Hz, 2 H), 4.55-4.53 (d, J=6.4 Hz, 2 H), 4.42 (s, 2 H), 4.09 (s, 2 H), 2.97-2.95 (t, J=4.8, 4.4 Hz, 2 H).

Workup

extractionextracted with ethyl acetate
dry with materialThe organic layer was dried with sodium sulfate
concentrationconcentrated in vacuo
customThe residue was purified by preparative HPLC

Sources & evidence

ORD record: ord-2e03cf2603014fe3bce4b679231c30dd
Source dataset: uspto-grants-2014_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08871756B2

Reaction notes

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