Reaction equation
[OH-:1].[Na+].OO.[C:5]([C:7]1([NH:27][C:28](=O)[CH3:29])[CH2:12][CH2:11][CH:10]([NH:13][S:14]([C:17]2[CH:22]=[CH:21][C:20]([O:23][CH2:24][CH3:25])=[C:19]([CH3:26])[CH:18]=2)(=[O:16])=[O:15])[CH2:9][CH2:8]1)#[N:6]>C(O)C.O>[CH2:24]([O:23][C:20]1[CH:21]=[CH:22][C:17]([S:14]([NH:13][CH:10]2[CH2:9][CH2:8][C:7]3([N:27]=[C:28]([CH3:29])[NH:6][C:5]3=[O:1])[CH2:12][CH2:11]2)(=[O:15])=[O:16])=[CH:18][C:19]=1[CH3:26])[CH3:25]Participants
Conditions
- Temperature
- 80 °C
Procedure
5N Sodium hydroxide (320 ul, 1.59 mmol) followed by 50% aqueous hydrogen peroxide (157 ul, 2.55 mmol) were added to solution of N-(1-cyano-4-(4-ethoxy-3-methylphenylsulfonamido)cyclohexyl)acetamide (Intermediate 126, 242 mg, 0.638 mmol) in ethanol (6.4 ml). The reaction was heated to 80° C. for three hours. LCMS indicated approximately 3:1 product:starting material by co-injection. The reaction was diluted with water and extract with four volumes ethyl acetate. The combined organics were dried over sodium sulfate, filtered and concentrate to 226 mg crude. TLC (10% methanol in ethyl acetate): Rf starting material 0.66; major spot Rf=0.25. The crude was chromatographed on Biotage 12M eluting 0-100% ethyl acetate in (10% methanol in ethyl acetate) to give the product as an off-white solid (117 mg, 0.308 mmol). LCMS [M+H]=380.2.
Workup
- extractionextract with four volumes ethyl acetate
- dry with materialThe combined organics were dried over sodium sulfate
- filtrationfiltered
- concentrationconcentrate to 226 mg crude
- customThe crude was chromatographed on Biotage 12M
- washeluting 0-100% ethyl acetate in (10% methanol in ethyl acetate)
Sources & evidence
- ORD record
- ord-1e07e2d0db0a4902aa10cc40ff7066e6
- Source dataset
- uspto-grants-2013_03
- Patent number
- US08394858B2
Linked notes
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