Phenethyl bromide → HCID 22245767, compound

HRID 411272Notes

Reaction equation

[CH2:1](Br)[CH2:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[NH2:10][C:11]1[C:28]([CH3:29])=[CH:27][C:14]([O:15][CH2:16][C:17]([N:19]([CH3:26])[CH:20]2[CH2:25][CH2:24][NH:23][CH2:22][CH2:21]2)=[O:18])=[C:13]([CH3:30])[C:12]=1[CH3:31].C(N(CC)CC)C.[Cl-].[NH4+]>C(#N)C>[NH2:10][C:11]1[C:28]([CH3:29])=[CH:27][C:14]([O:15][CH2:16][C:17]([N:19]([CH3:26])[CH:20]2[CH2:25][CH2:24][N:23]([CH2:1][CH2:2][C:3]3[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=3)[CH2:22][CH2:21]2)=[O:18])=[C:13]([CH3:30])[C:12]=1[CH3:31]

Participants

Conditions

Temperature: 60 °C

Procedure

200 mg of phenethyl bromide was added to a mixture solution of 350 mg of the Compound (1) obtained in the Example 1 and 172 mg of triethylamine in 5 ml of acetonitrile, and the mixture was stirred for 5 hours at 60° C. Then, 5 ml of saturated ammonium chloride solution was added to the reaction mixture and the mixture was extracted with ethyl acetate. The extract was washed with brine, dried and concentrated under reduced pressure to give a residue. The obtained residue was purified by amine-coated silica gel (Fuji Silysia Chemical Ltd.; NH-DM1020) column chromatography (methylene chloride:methanol=20:1) to give 390 mg (83%) of the above-mentioned compound (28).

Workup

extractionthe mixture was extracted with ethyl acetate
washThe extract was washed with brine
customdried
concentrationconcentrated under reduced pressure
customto give a residue
customThe obtained residue was purified by amine-coated silica gel (Fuji Silysia Chemical Ltd.; NH-DM1020) column chromatography (methylene chloride:methanol=20:1)

Sources & evidence

ORD record: ord-5481649373364ff599c1bb00fb3774e4
Source dataset: uspto-grants-2003_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06559146B1

Reaction notes

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