Cesium carbonate → {4,6-Dimethyl-5-[({1-[4-(5-methyl-pyrazol-1-ylmethyl)-benzyl]-1H-[1,2,3]triazole-4-carbonyl}-amino)-methyl]-pyridin-2-yl}-carbamic acid tert-butyl ester

HRID 928417Notes

Reaction equation

[C:1]([O:5][C:6](=[O:34])[NH:7][C:8]1[CH:13]=[C:12]([CH3:14])[C:11]([CH2:15][NH:16][C:17]([C:19]2[N:20]=[N:21][N:22]([CH2:24][C:25]3[CH:30]=[CH:29][C:28]([CH2:31]Cl)=[CH:27][CH:26]=3)[CH:23]=2)=[O:18])=[C:10]([CH3:33])[N:9]=1)([CH3:4])([CH3:3])[CH3:2].[CH3:35][C:36]1[CH:40]=[CH:39][NH:38][N:37]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C=O)C>[C:1]([O:5][C:6](=[O:34])[NH:7][C:8]1[CH:13]=[C:12]([CH3:14])[C:11]([CH2:15][NH:16][C:17]([C:19]2[N:20]=[N:21][N:22]([CH2:24][C:25]3[CH:30]=[CH:29][C:28]([CH2:31][N:37]4[C:36]([CH3:35])=[CH:40][CH:39]=[N:38]4)=[CH:27][CH:26]=3)[CH:23]=2)=[O:18])=[C:10]([CH3:33])[N:9]=1)([CH3:4])([CH3:3])[CH3:2]

Participants

Conditions

Temperature: 80 °C

Procedure

A mixture of [5-({[1-(4-Chloromethyl-benzyl)-1H-[1,2,3]triazole-4-carbonyl]-amino}-methyl)-4,6-dimethyl-pyridin-2-yl]-carbamic acid tert-butyl ester (200 mg, 0.412 mmol), 3-methylpyrazole (33.9 mg, 0.412 mmol) and cesium carbonate (269 mg, 0.825 mmol) in 2 mL of DMF was stirred at 80° C. for 2 h. The reaction mixture was filtered and concentrated under reduced pressure. The residue was purified by preparative HPLC (Waters SunFire Prep C18 OBD 5 μm 30×100 mm, Flow 40 mL/min, ACN/water (0.1% TFA) 5/95 over 2 min, then ACN/water (0.1% TFA) 5195-100/0 over 15 min). LCMS (Method A) RtA=1.527; [M+H]+=531.1.

Workup

filtrationThe reaction mixture was filtered
concentrationconcentrated under reduced pressure
customThe residue was purified by preparative HPLC (Waters SunFire Prep C18 OBD 5 μm 30×100 mm, Flow 40 mL/min, ACN/water (0.1% TFA) 5/95 over 2 min
waitACN/water (0.1% TFA) 5195-100/0 over 15 min)

Sources & evidence

ORD record: ord-37d489d3ea7e4bbcaaf2c45cbf3b371c
Source dataset: uspto-grants-2016_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09290485B2

Reaction notes

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