Isobutyl nitrite → Methyl 2-(4-(4-((4-chlorophenethyl)carbamoyl)phenoxy)-3-chlorophenyl)acetate

HRID 453500Notes

Reaction equation

N(OCC(C)C)=O.[Cl:8][C:9]1[CH:39]=[CH:38][C:12]([CH2:13][CH2:14][NH:15][C:16]([C:18]2[CH:36]=[CH:35][C:21]([O:22][C:23]3[CH:28]=[CH:27][C:26]([CH2:29][C:30]([O:32][CH3:33])=[O:31])=[CH:25][C:24]=3[Cl:34])=[C:20](N)[CH:19]=2)=[O:17])=[CH:11][CH:10]=1>CN(C=O)C.C(OCC)(=O)C>[Cl:8][C:9]1[CH:10]=[CH:11][C:12]([CH2:13][CH2:14][NH:15][C:16]([C:18]2[CH:36]=[CH:35][C:21]([O:22][C:23]3[CH:28]=[CH:27][C:26]([CH2:29][C:30]([O:32][CH3:33])=[O:31])=[CH:25][C:24]=3[Cl:34])=[CH:20][CH:19]=2)=[O:17])=[CH:38][CH:39]=1

Participants

Conditions

Temperature: 60 °C

Procedure

Isobutyl nitrite (0.0751 ml, 0.634 mmol) was diluted with DMF (1 mL), placed under nitrogen and heated to 60° C. Methyl 2-(4-(4-((4-chlorophenethyl)carbamoyl)-2-aminophenoxy)-3-chlorophenyl)acetate (100 mg, 0.211 mmol) in DMF (1 mL) was added dropwise and the reaction was stirred for 1 hour. The reaction was cooled, diluted with ethyl acetate and washed with 2N HCl, saturated sodium bicarbonate and brine. The organic layer was dried over MgSO4, filtered and concentrated. The material was purified using a biotage 12i column, eluting with DCM:MeOH (99:1) to yield methyl 2-(4-(4-((4-chlorophenethyl)carbamoyl)phenoxy)-3-chlorophenyl)acetate (70 mg, 72.3% yield).

Workup

temperatureThe reaction was cooled
washwashed with 2N HCl, saturated sodium bicarbonate and brine
dry with materialThe organic layer was dried over MgSO4
filtrationfiltered
concentrationconcentrated
customThe material was purified
washeluting with DCM:MeOH (99:1)

Sources & evidence

ORD record: ord-160422728986426680592a776f1a7a48
Source dataset: uspto-grants-2013_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08492437B2

Reaction notes

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