1-Bromo-2-Chloroethane → HCID 66689625, compound

HRID 1697348Notes

Reaction equation

[CH:1]1([NH:4][C:5](=[O:32])[C:6]2[CH:11]=[C:10]([N:12]3[CH:17]=[CH:16][N:15]=[C:14]([NH:18][C:19]([C:22]4[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=4[OH:28])([CH3:21])[CH3:20])[C:13]3=[O:29])[C:9]([CH3:30])=[C:8]([F:31])[CH:7]=2)[CH2:3][CH2:2]1.C(=O)([O-])[O-].[K+].[K+].Br[CH2:40][CH2:41][Cl:42]>C(#N)C>[Cl:42][CH2:41][CH2:40][O:28][C:23]1[CH:24]=[CH:25][CH:26]=[CH:27][C:22]=1[C:19]([NH:18][C:14]1[C:13](=[O:29])[N:12]([C:10]2[CH:11]=[C:6]([CH:7]=[C:8]([F:31])[C:9]=2[CH3:30])[C:5]([NH:4][CH:1]2[CH2:2][CH2:3]2)=[O:32])[CH:17]=[CH:16][N:15]=1)([CH3:20])[CH3:21]

Participants

Conditions

Temperature: 83 °C

Procedure

A solution of N-cyclopropyl-3-fluoro-5-[3-[[1-(2-hydroxyphenyl)-1-methylethyl]amino]-2-oxo-1(2H)-pyrazinyl]-4-methyl-benzamide (Example 252j, 7.08 g) dissolved in acetonitrile (150 mL) was treated with potassium carbonate (22.42 g) and 1-bromo-2-chloroethane (13.50 mL) under nitrogen. The resulting suspension was stirred at 83° C. for 10 h. The reaction mixture was evaporated to dryness, diluted with water (300 mL), and extracted with dichloromethane. The organic layer was dried (MgSO4) and evaporated. The crude product was triturated with 50% diethyl ether in iso-hexane to afford subtitle compound (7.58 g).

Workup

customThe reaction mixture was evaporated to dryness
additiondiluted with water (300 mL)
extractionextracted with dichloromethane
dry with materialThe organic layer was dried (MgSO4)
customevaporated
customThe crude product was triturated with 50% diethyl ether in iso-hexane

Sources & evidence

ORD record: ord-0955430bb78a4073a4757985a4fa3041
Source dataset: uspto-grants-2012_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08163905B2

Reaction notes

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