Diisopropylethylamine → HCID 86680992, compound

HRID 1847957Notes

Reaction equation

HRID 1847957 reaction equation
Br[C:2]1[S:3][C:4]2[CH:10]=[C:9]([CH2:11][N:12]3[C:16]4[CH:17]=[C:18]([O:23][CH3:24])[C:19]([O:21][CH3:22])=[CH:20][C:15]=4[N:14]=[CH:13]3)[CH:8]=[CH:7][C:5]=2[N:6]=1.CCN(C(C)C)C(C)C.[NH2:34][C@@H:35]1[CH2:40][CH2:39][CH2:38][CH2:37][C@H:36]1[OH:41]>CC(N(C)C)=O>[CH3:22][O:21][C:19]1[C:18]([O:23][CH3:24])=[CH:17][C:16]2[N:12]([CH2:11][C:9]3[CH:8]=[CH:7][C:5]4[N:6]=[C:2]([NH:34][C@@H:35]5[CH2:40][CH2:39][CH2:38][CH2:37][C@H:36]5[OH:41])[S:3][C:4]=4[CH:10]=3)[CH:13]=[N:14][C:15]=2[CH:20]=1

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 735777(1R,2R)-2-AminocyclohexanolHCID 86680991HCID 86680991, compound

Product 1

HCID 86680992HCID 86680992, compoundYield 58%

Reagents, catalysts & solvents 1

HCID 31374DimethylacetamideSolvent

Conditions

Temperature
120 °C

Procedure

To a suspension of 2-bromo-6-((5,6-dimethoxy-1H-benzo[d]imidazol-1-yl)methyl)benzo[d]thiazole (202 mg, 0.5 mmol) from Step 4 of this Example in DMA (4 mL) were added DIEA (129 mg, 1.0 mmol) and (1R,2R)-2-aminocyclohexanol (69 mg, 0.6 mmol) at rt. The mixture was stirred in a sealed tube at 120° C. overnight. After cooling to rt, the mixture was concentrated under reduced pressure. The crude product was purified by HPLC using a mixture of water (5% CH3CN, 0.05% AcOH) and CH3CN (0.05% AcOH) as the mobile phase and Varian Pursuit XRs Diphenyl column as the stationary phase to afford (1R,2R)-2-((6-((5,6-dimethoxy-1H-benzo[d]imidazol-1-yl)methyl)benzo[d]thiazol-2-yl)amino)cyclohexanol as a white solid (127 mg, 58%). 1H NMR (300 MHz, DMSO-d6) δ 8.14 (s, 1H), 7.99 (d, J=7.5 Hz, 1H), 7.62 (s, 1H), 7.04-7.34 (m, 4H), 5.40 (s, 2H), 4.77 (br s, 1H), 3.76 (s, 6H), 3.51 (br s, 1H), 1.77-2.14 (m, 3H), 1.61 (br, 2H), 1.04-1.38 (m, 4H). LCMS (ESI) m/z 439 (M+H)+.

Workup

  1. temperatureAfter cooling to rt
  2. concentrationthe mixture was concentrated under reduced pressure
  3. customThe crude product was purified by HPLC
  4. additiona mixture of water (5% CH3CN, 0.05% AcOH) and CH3CN (0.05% AcOH) as the mobile phase and Varian Pursuit XRs Diphenyl column as the stationary phase

Sources & evidence

ORD record
ord-50bab609bb1d47599f0140cdf27f4f8b
Source dataset
uspto-grants-2015_02
Patent number
US08952058B2

Reaction notes

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