(7R)-7-({[t-Butyl(dimethyl)silyl]oxy}methyl)-7-methyl-5-(methylthio)-2,3,6,7-tetrahydro-1,4-thiazepine → 6-(4-{1-[(8R)-8-({[t-Butyl(dimethyl)silyl]oxy}methyl)-8-methyl-5,6,8,9-tetrahydro[1,2,4]triazolo[4,3-d][1,4]thiazepin-3-yl]cyclopropyl}phenyl)nicotinonitrile

HRID 1424094Notes

Reaction equation

[Si:1]([O:8][CH2:9][C@:10]1([CH3:19])[S:16][CH2:15][CH2:14][N:13]=[C:12](SC)[CH2:11]1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].[C:20]([C:22]1[CH:23]=[CH:24][C:25]([C:28]2[CH:33]=[CH:32][C:31]([C:34]3([C:37]([NH:39][NH2:40])=O)[CH2:36][CH2:35]3)=[CH:30][CH:29]=2)=[N:26][CH:27]=1)#[N:21]>C(O)CCC>[Si:1]([O:8][CH2:9][C@:10]1([CH3:19])[S:16][CH2:15][CH2:14][N:13]2[C:37]([C:34]3([C:31]4[CH:32]=[CH:33][C:28]([C:25]5[CH:24]=[CH:23][C:22]([C:20]#[N:21])=[CH:27][N:26]=5)=[CH:29][CH:30]=4)[CH2:36][CH2:35]3)=[N:39][N:40]=[C:12]2[CH2:11]1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2]

Participants

Conditions

Temperature: 140 °C

Procedure

The compound (418 mg, 1.31 mmol) obtained in Example 4-1) and the compound (364 mg, 1.31 mmol) obtained in Example 60-3) were dissolved in 1-butanol (5 mL), and the mixture was stirred at 140° C. for 5 h under a nitrogen atmosphere. The reaction mixture was cooled to room temperature, then the solvent was distilled off, and the obtained residue was purified by silica gel column chromatography (elution solvent: methanol/ethyl acetate=0% to 20%) to obtain the title compound (375 mg, 54%) in a white solid form.

Workup

temperatureThe reaction mixture was cooled to room temperature
distillationthe solvent was distilled off
customthe obtained residue was purified by silica gel column chromatography (elution solvent: methanol/ethyl acetate=0% to 20%)

Sources & evidence

ORD record: ord-86b617af451148c088b9e2c24007a92b
Source dataset: uspto-grants-2015_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08927536B2

Reaction notes

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