Diisopropylethylamine → (1R,2R)-1-((6-((6-fluoro-3H-imidazo[4,5-b]pyridin-3-yl)methyl)benzo[d]thiazol-2-yl)amino)-2,3-dihydro-1H-inden-2-ol

HRID 1848047Notes

Reaction equation

[F:1][C:2]1[CH:3]=[C:4]2[N:10]=[CH:9][N:8]([CH2:11][C:12]3[CH:23]=[CH:22][C:15]4[N:16]=[C:17](S(C)=O)[S:18][C:14]=4[CH:13]=3)[C:5]2=[N:6][CH:7]=1.[CH2:24]1[C:32]2[C:27](=[CH:28][CH:29]=[CH:30][CH:31]=2)[C@@H:26]([NH2:33])[C@@H:25]1[OH:34].CCN(C(C)C)C(C)C>CC(N(C)C)=O>[F:1][C:2]1[CH:3]=[C:4]2[N:10]=[CH:9][N:8]([CH2:11][C:12]3[CH:23]=[CH:22][C:15]4[N:16]=[C:17]([NH:33][C@@H:26]5[C:27]6[C:32](=[CH:31][CH:30]=[CH:29][CH:28]=6)[CH2:24][C@H:25]5[OH:34])[S:18][C:14]=4[CH:13]=3)[C:5]2=[N:6][CH:7]=1

Participants

Conditions

Temperature: 150 °C

Procedure

A stirred mixture of 6-((6-fluoro-3H-imidazo[4,5-b]pyridin-3-yl)methyl)-2-(methylsulfinyl)benzo[d]thiazole (120 mg, 0.346 mmol) from Step 4 of Example 70, (1R,2R)-(−)-trans-1-amino-2-indanol (103 mg, 0.692 mmol), and DIEA (89 mg, 0.692 mmol) in anhydrous DMA (2.5 mL) was heated in a Biotage microwave synthesizer at 150° C. for 30 min. LCMS analysis indicated that the reaction was incomplete. Additional (1R,2R)-(−)-trans-1-amino-2-indanol (103 mg, 0.692 mmol) and DIEA (89 mg, 0.692 mmol) were added and the mixture was further heated in a Biotage microwave synthesizer at 150° C. for 2 h. After the reaction mixture was cooled to rt, it was purified directly by reverse-phase HPLC using a mixture of water (5% CH3CN, 0.05% HCOOH) and CH3CN (0.05% HCOOH) as the mobile phase and Varian Pursuit XRs C-18 column as the stationary phase to afford (1R,2R)-1-((6-((6-fluoro-3H-imidazo[4,5-b]pyridin-3-yl)methyl)benzo[d]thiazol-2-yl)amino)-2,3-dihydro-1H-inden-2-ol (24 mg, 16%) as a white solid. 1H NMR (300 MHz, DMSO-d6) δ 8.70 (s, 1H), 8.40-8.50 (m, 2H), 8.09 (dd, J=2.6, 9.4 Hz, 1H), 7.73 (d, J=1.1 Hz, 1H), 7.32-7.39 (m, 1H), 7.10-7.31 (m, 5H), 5.47-6.00 (m, 3H), 5.18 (t, J=7.1 Hz, 1H), 4.30 (d, J=3.6 Hz, 1H), 3.16 (dd, J=7.0, 15.6 Hz, 1H), 2.74 (dd, J=7.1, 15.5 Hz, 1H). LCMS (ESI) m/z 432 (M+H)+.

Workup

temperaturethe mixture was further heated in a Biotage microwave synthesizer at 150° C. for 2 h
temperatureAfter the reaction mixture was cooled to rt
customit was purified directly by reverse-phase
additiona mixture of water (5% CH3CN, 0.05% HCOOH) and CH3CN (0.05% HCOOH) as the mobile phase and Varian Pursuit XRs C-18 column as the stationary phase

Sources & evidence

ORD record: ord-4a0db797099044ac92f1a44226a27442
Source dataset: uspto-grants-2015_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08952058B2

Reaction notes

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