Diisopropylethylamine → HCID 67469768, compound

HRID 408005Notes

Reaction equation

Cl.[F:2][C:3]1[CH:4]=[C:5]([CH:10]=[CH:11][C:12]=1[O:13][C@H:14]1[CH2:18][CH2:17][N:16]([CH:19]2[CH2:24][CH2:23][NH:22][CH2:21][CH2:20]2)[C:15]1=[O:25])[C:6]([O:8][CH3:9])=[O:7].C(N(C(C)C)C(C)C)C.[Cl:35][C:36]1[CH:37]=[C:38]([F:43])[C:39](F)=[N:40][CH:41]=1>CN(C=O)C.CCOC(C)=O>[Cl:35][C:36]1[CH:37]=[C:38]([F:43])[C:39]([N:22]2[CH2:23][CH2:24][CH:19]([N:16]3[CH2:17][CH2:18][C@H:14]([O:13][C:12]4[CH:11]=[CH:10][C:5]([C:6]([O:8][CH3:9])=[O:7])=[CH:4][C:3]=4[F:2])[C:15]3=[O:25])[CH2:20][CH2:21]2)=[N:40][CH:41]=1

Participants

Conditions

Temperature: 60 °C

Procedure

To a solution of (S)-methyl 3-fluoro-4-(2-oxo-1-(piperidin-4-yl)pyrrolidin-3-yloxy)benzoate hydrochloride (Example 151, Step B; 2.0 g, 5.9 mmol) in DMF (3 mL) was added N-ethyl-N-isopropylpropan-2-amine (3.8 g, 30 mmol) and 5-chloro-2,3-difluoropyridine (2.7 g, 18 mmol) and the reaction was heated to 60° C. overnight. The reaction was next diluted with EtOAc (30 mL) and washed with water (30 mL), and brine (30 mL), and the combined organic phases were dried over MgSO4, filtered and concentrated under vacuum. The crude material was purified on silica using a gradient of DCM to 1:19 EtOAc:DCM as eluent to yield (S)-methyl 4-(1-(1-(5-chloro-3-fluoropyridin-2-yl)piperidin-4-yl)-2-oxopyrrolidin-3-yloxy)-3-fluorobenzoate (1.5 g, 54%)

Workup

washwashed with water (30 mL), and brine (30 mL)
dry with materialthe combined organic phases were dried over MgSO4
filtrationfiltered
concentrationconcentrated under vacuum
customThe crude material was purified on silica using a gradient of DCM to 1:19 EtOAc

Sources & evidence

ORD record: ord-afc7fc35376a40339af74e232a43d22f
Source dataset: uspto-grants-2014_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08754226B2

Reaction notes

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