1-Hydroxybenzotriazole → HCID 67549887, compound

HRID 43817Notes

Reaction equation

[NH2:1][C@H:2]1[CH2:7][CH2:6][N:5]([C:8]2[S:12][C:11]([CH3:13])=[C:10]([C:14]([O:16][CH3:17])=[O:15])[CH:9]=2)[CH2:4][C@H:3]1[O:18][CH3:19].[Cl:20][C:21]1[N:22]=[C:23]([C:28](O)=[O:29])[NH:24][C:25]=1[CH2:26][CH3:27].CCN=C=NCCCN(C)C.Cl.C1C=CC2N(O)N=NC=2C=1>CC(N(C)C)=O.C(OCC)(=O)C>[Cl:20][C:21]1[N:22]=[C:23]([C:28]([NH:1][C@H:2]2[CH2:7][CH2:6][N:5]([C:8]3[S:12][C:11]([CH3:13])=[C:10]([C:14]([O:16][CH3:17])=[O:15])[CH:9]=3)[CH2:4][C@H:3]2[O:18][CH3:19])=[O:29])[NH:24][C:25]=1[CH2:26][CH3:27]

Participants

Conditions

Temperature: 70 °C

Procedure

Methyl cis(±)-5-(4-amino-3-methoxypiperidin-1-yl)-2-methylthiophene-3-carboxylate obtained in Example (188d) (20 mg, 0.07 mmol) and 4-chloro-5-ethyl-1H-imidazole-2-carboxylic acid obtained in Example (1d) (15 mg, 0.07 mmol) were dissolved in DMA (2 ml). WSC hydrochloride (40 mg, 0.21 mmol) and HOBt (10 mg, 0.07 mmol) were added, and the mixture was stirred at 70° C. for one hour and at room temperature overnight. The reaction solution was diluted with ethyl acetate, washed with water, and dried over anhydrous sodium sulfate. Following concentration under reduced pressure, the residue was purified by silica gel column chromatography (elution solvent: ethyl acetate/hexane=0, 9, 17%) to obtain 16 mg of the title compound as a glassy solid. mass spectrum (ESI): m/z 441 (M+H)+.

Workup

washwashed with water
dry with materialdried over anhydrous sodium sulfate
concentrationconcentration under reduced pressure
customthe residue was purified by silica gel column chromatography (elution solvent: ethyl acetate/hexane=0, 9, 17%)

Sources & evidence

ORD record: ord-88296e165cde433cbed4fbbbe685c0b5
Source dataset: uspto-grants-2013_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08536197B2

Reaction notes

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