Acetic Anhydride → HCID 52919830, compound

HRID 872682Notes

Reaction equation

HRID 872682 reaction equation
[Cl:1][C:2]1[C:3]([CH3:29])=[C:4]([C:10]2[CH:14]=[CH:13][N:12]([CH2:15][C@@H:16]([NH:18][C:19]([C:21]3[N:22]=[C:23]([CH:26]([OH:28])[CH3:27])[S:24][CH:25]=3)=[O:20])[CH3:17])[N:11]=2)[CH:5]=[CH:6][C:7]=1[C:8]#[N:9].[C:30](OC(=O)C)(=[O:32])[CH3:31]>CN(C1C=CN=CC=1)C.N1C=CC=CC=1>[C:30]([O:28][CH:26]([C:23]1[S:24][CH:25]=[C:21]([C:19](=[O:20])[NH:18][C@@H:16]([CH3:17])[CH2:15][N:12]2[CH:13]=[CH:14][C:10]([C:4]3[CH:5]=[CH:6][C:7]([C:8]#[N:9])=[C:2]([Cl:1])[C:3]=3[CH3:29])=[N:11]2)[N:22]=1)[CH3:27])(=[O:32])[CH3:31]

Participants

5

Reactant 2

HCID 7918Acetic AnhydrideHCID 70657091N-((S)-1-(3-(3-chloro-4-cyano-2-methylphenyl)-1H-pyrazol-1-yl)propan-2-yl)-2-(1-hydroxyethyl)thiazole-4-carboxamide

Product 1

HCID 52919830HCID 52919830, compoundYield 80%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 1049PyridineSolvent

Conditions

Temperature
0 °C

Procedure

N—((S)-1-(3-(3-chloro-4-cyano-2-methylphenyl)-1H-pyrazol-1-yl)propan-2-yl)-2-(1-hydroxyethyl)thiazole-4-carboxamide (0.1 g, 0.233 mmol) and DMAP (2.87 mg, 0.023 mmol) were added into a flask under nitrogen atmosphere. Pyridine was added, the mixture cooled to 0° C. and acetic anhydride (0.023 ml, 0.244 mmol) was added dropwise. The mixture was slowly heated to RT and stirred. After 2.5 h the mixture was evaporated. The product was purified with Flash-chromatography. Yield 80%. 1H-NMR (400 MHz; CDCl3): δ 1.27 (d, 3H), 1.59 (dd, 3H), 2.15 (d, 3H), 2.56 (d, 3H), 4.33 (dd, 1H), 4.43 (dd, 1H), 4.60 (m, 1H), 6.03-6.11 (m, 1H), 6.43 (d, 1H), 7.50-7.58 (m, 3H), 7.77-7.88 (m, 1H), 8.05 (s, 1H).

Workup

  1. temperatureThe mixture was slowly heated to RT
  2. customAfter 2.5 h the mixture was evaporated
  3. customThe product was purified with Flash-chromatography

Sources & evidence

ORD record
ord-3a67c0c318b34ff09ab41ff13d45bf7e
Source dataset
uspto-grants-2015_03
Patent number
US08975254B2

Reaction notes

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