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Diisopropylethylamine → Ethyl 5-[9-(5-{3-cyano-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-2,3-dihydro-1,4-benzoxazepin-4(5H)-yl]pentanoate

HRID 1514243
Notes
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Reaction equation

HRID 1514243 reaction equation
[CH3:1][CH:2]([O:4][C:5]1[CH:12]=[CH:11][C:10]([C:13]2[O:17][N:16]=[C:15]([C:18]3[C:28]4[O:27][CH2:26][CH2:25][NH:24][CH2:23][C:22]=4[CH:21]=[CH:20][CH:19]=3)[N:14]=2)=[CH:9][C:6]=1[C:7]#[N:8])[CH3:3].C(N(CC)C(C)C)(C)C.Br[CH2:39][CH2:40][CH2:41][CH2:42][C:43]([O:45][CH2:46][CH3:47])=[O:44]>C(#N)C>[C:7]([C:6]1[CH:9]=[C:10]([C:13]2[O:17][N:16]=[C:15]([C:18]3[C:28]4[O:27][CH2:26][CH2:25][N:24]([CH2:39][CH2:40][CH2:41][CH2:42][C:43]([O:45][CH2:46][CH3:47])=[O:44])[CH2:23][C:22]=4[CH:21]=[CH:20][CH:19]=3)[N:14]=2)[CH:11]=[CH:12][C:5]=1[O:4][CH:2]([CH3:1])[CH3:3])#[N:8]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 84580Ethyl 5-bromovalerateHCID 44129064HCID 44129064, compound

Product 1

HCID 59403540Ethyl 5-[9-(5-{3-cyano-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-2,3-dihydro-1,4-benzoxazepin-4(5H)-yl]pentanoate

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Conditions

Temperature
80 °C

Procedure

To a solution of 2-[(1-methylethyl)oxy]-5-[3-(2,3,4,5-tetrahydro-1,4-benzoxazepin-9-yl)-1,2,4-oxadiazol-5-yl]benzonitrile (Example 32) (100 mg, 0.204 mmol) in acetonitrile (10 ml) was added N,N-diisopropylethylamine (0.07 ml, 0.408 mmol) and ethyl 5-bromopentanoate (0.06 mL, 0.408 mmol). The reaction mixture was heated to 80° C. overnight then was allowed to cool and the solvent evaporated. Purification of the residue by flash chromatography, eluting with (40-100% ethyl acetate in cyclohexane) gave the title compound as an off white solid (70 mg).

Workup

  1. temperatureto cool
  2. customthe solvent evaporated
  3. customPurification of the residue by flash chromatography
  4. washeluting with (40-100% ethyl acetate in cyclohexane)

Sources & evidence

ORD record
ord-5a0f8ab0f6424a9b8454c01f0a0b8993
Source dataset
uspto-grants-2012_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08222245B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes