N-methyl-2-pyrrolidone → HCID 86681094, compound

HRID 1848121Notes

Reaction equation

HRID 1848121 reaction equation
[CH3:1][C:2]1[C:23]([CH3:24])=[CH:22][C:5]2[N:6]([CH2:9][C:10]3[CH:21]=[CH:20][C:13]4[N:14]=[C:15]([S:17](C)=O)S[C:12]=4[CH:11]=3)[CH:7]=[N:8][C:4]=2[CH:3]=1.[NH2:25][C@@H:26]1[CH2:31][CH2:30][CH2:29][CH2:28][C@H:27]1[OH:32].CCN(C(C)C)C(C)C.CN1C(=O)CCC1>CCOC(C)=O>[CH3:1][C:2]1[C:23]([CH3:24])=[CH:22][C:5]2[N:6]([CH2:9][C:10]3[CH:11]=[CH:12][C:13]4[N:14]=[C:15]([NH:25][C@@H:26]5[CH2:31][CH2:30][CH2:29][CH2:28][C@H:27]5[OH:32])[S:17][C:20]=4[CH:21]=3)[CH:7]=[N:8][C:4]=2[CH:3]=1

Participants

6

Reactant 4

HCID 13387N-methyl-2-pyrrolidoneHCID 81531DiisopropylethylamineHCID 735777(1R,2R)-2-AminocyclohexanolHCID 86681093HCID 86681093, compound

Product 1

HCID 86681094HCID 86681094, compoundYield 47%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
130 °C

Procedure

A stirred mixture of 6-((5,6-dimethyl-1H-benzo[d]imidazol-1-yl)methyl)-2-(methylsulfinyl)benzo[d]thiazole (150 mg, 0.42 mmol) from the previous step, (1R,2R)-2-aminocyclohexanol (140 mg, 1.2 mmol), DIEA (540 mg, 4.2 mmol) and NMP (2 mL) was heated at 130° C. for 12 h. The reaction mixture was cooled to rt, diluted with EtOAc (30 mL) and washed with water (10 mL×2). The organic layer was separated, dried over Na2SO4, filtered, and concentrated under reduced pressure. The residue was purified by silica gel flash chromatography eluting with 3% MeOH in DCM to afford (1R,2R)-2-((6-((5,6-dimethyl-1H-benzo[d]imidazol-1-yl)methyl)benzo[d]thiazol-2-yl)amino)cyclohexanol (80 mg, 47%) as a white solid. 1H NMR (300 MHz, DMSO-d6) δ 8.22 (s, 1H), 7.92 (d, J=6.0 Hz, 1H), 7.58 (m, 1H), 7.41 (s, 1H), 7.26-7.31 (m, 2H), 7.14 (m, 1H), 5.40 (s, 2H), 4.71 (d, J=3.0 Hz, 1H), 3.50 (m, 1H), 3.35 (m, 1H), 2.30 (s, 6H), 2.02 (m, 1H), 1.88 (m, 1H), 1.86-1.90 (m, 2H), 1.12-1.27 (m, 4H); LCMS (ESI) m/z 407 (M+H)+.

Workup

  1. temperatureThe reaction mixture was cooled to rt
  2. washwashed with water (10 mL×2)
  3. customThe organic layer was separated
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified by silica gel flash chromatography
  8. washeluting with 3% MeOH in DCM

Sources & evidence

ORD record
ord-8276f046345d41e1a24c5c8c2f8cc888
Source dataset
uspto-grants-2015_02
Patent number
US08952058B2

Reaction notes

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