Diisopropylethylamine → HCID 86681003, compound

HRID 1847966Notes

Reaction equation

HRID 1847966 reaction equation
[N:1]1([CH2:10][C:11]2[CH:20]=[CH:19][C:14]3[N:15]=[C:16](Br)[S:17][C:13]=3[CH:12]=2)[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[CH:2]1.CCN(C(C)C)C(C)C.[NH2:30][C@@H:31]1[CH2:36][CH2:35][CH2:34][CH2:33][C@H:32]1[OH:37]>CC(N(C)C)=O>[N:1]1([CH2:10][C:11]2[CH:20]=[CH:19][C:14]3[N:15]=[C:16]([NH:30][C@@H:31]4[CH2:36][CH2:35][CH2:34][CH2:33][C@H:32]4[OH:37])[S:17][C:13]=3[CH:12]=2)[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[CH:2]1

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 735777(1R,2R)-2-AminocyclohexanolHCID 86681004HCID 86681004, compound

Product 1

HCID 86681003HCID 86681003, compoundYield 58.1%

Reagents, catalysts & solvents 1

HCID 31374DimethylacetamideSolvent

Conditions

Temperature
120 °C

Procedure

To a suspension of 6-((1H-benzo[d]imidazol-1-yl)methyl)-2-bromobenzo[d]thiazole from Step 1 of Example 1 (34.4 mg, 0.1 mmol) in DMA (3 mL) were added DIEA (15 mg, 0.12 mmol) and (1R,2R)-2-aminocyclohexanol (13.8 mg, 0.12 mmol) at rt. The reaction 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 preparative HPLC using a mixture of water (containing 5% CH3CN, 0.05% HCOOH) and CH3CN (containing 0.05% HCOOH) as the mobile phase and Varian Pursuit XRs C-18 column as the stationary phase to afford (1R,2R)-2-((6-((1H-benzo[d]imidazol-1-yl)methyl)benzo[d]thiazol-2-yl)amino)cyclohexanol (22 mg, 58%) as a white solid. 1H NMR (300 MHz, DMSO-d6) δ 8.40 (s, 1H), 7.99 (d, J=7.3 Hz, 1H), 7.60-7.72 (m, 2H), 7.55 (dd, J=2.6, 6.0 Hz, 1H), 7.26-7.34 (m, 1H), 7.12-7.25 (m, 3H), 5.47 (s, 2H), 4.76 (br s, 1H), 3.26-3.39 (m, 2H), 2.03 (d, J=10.0 Hz, 1H), 1.87 (d, J=9.4 Hz, 1H), 1.62 (d, J=4.7 Hz, 2H), 1.03-1.39 (m, 4H). LCMS (ESI) m/z 379 (M+H)+.

Workup

  1. temperatureAfter cooling to rt
  2. concentrationthe mixture was concentrated under reduced pressure
  3. customThe crude product was purified by preparative HPLC
  4. additiona mixture of water (containing 5% CH3CN, 0.05% HCOOH) and CH3CN (containing 0.05% HCOOH) as the mobile phase and Varian Pursuit XRs C-18 column as the stationary phase

Sources & evidence

ORD record
ord-51145565d49540b8adee27e134c5ed71
Source dataset
uspto-grants-2015_02
Patent number
US08952058B2

Reaction notes

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