Triethylamine → HCID 67086573, compound

HRID 2174971Notes

Reaction equation

HRID 2174971 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:15][CH2:14][CH:13]2[CH:10]([NH:11][CH2:12]2)[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[C:16]1([C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=2)[C:17]([C:22](Cl)=[O:23])=[CH:18][CH:19]=[CH:20][CH:21]=1.C(N(CC)CC)C>C(Cl)Cl>[C:1]([O:5][C:6]([N:8]1[CH2:15][CH2:14][CH:13]2[CH:10]([N:11]([C:22]([C:17]3[C:16]([C:25]4[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=4)=[CH:21][CH:20]=[CH:19][CH:18]=3)=[O:23])[CH2:12]2)[CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 12563768[1,1'-Biphenyl]-2-carbonyl chlorideHCID 43810891Tert-butyl 3,8-diazabicyclo[4.2.0]octane-3-carboxylate2×

Product 1

HCID 67086573HCID 67086573, compoundYield 68.6%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

3,8-Diaza-bicyclo[4.2.0]octane-3-carboxylic acid tert-butyl ester (Intermediate 1, 300 mg, 1.42 mmol), biphenyl-2-carbonyl chloride (429 mg, 1.98 mmol) and tri-ethyl amine (0.6 mL, 3.95 mmol) were dissolved into DCM (5 mL) and stirred at room temperature for 18 h. The reaction mixture was diluted with DCM (25 mL) and washed with 1N NaOH (10 mL) and water (2×20 mL). The organic layers were combined, dried, filtered and concentrated under reduced pressure to yield 8-(Biphenyl-2-carbonyl)-3,8-diaza-bicyclo[4.2.0]octane-3-carboxylic acid tert-butyl ester (380 mg, 68.6%). MS (ESI) mass calcd. for C24H28N2O3, 392.49; m/z found, 293.2 [M+H]+ (mass without Boc group). 1H NMR (CDCl3): 7.57-7.30 (m, 9H), 4.60-4.35 (m, 0.5H), 4.17-3.98 (m, 0.5H), 3.90-3.71 (m, 1H), 3.60-3.25 (m, 3H), 3.22-2.66 (m, 2H), 2.54-2.38 (m, 0.5H), 2.37-2.22 (m, 0.5H), 2.10-1.92 (m, 0.5H), 1.85-1.56 (m, 1.5H), 1.55-1.27 (m, 9H).

Workup

  1. washwashed with 1N NaOH (10 mL) and water (2×20 mL)
  2. customdried
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-b145679275254e0086af1516581d6e9b
Source dataset
uspto-grants-2015_06
Patent number
US09062044B2

Reaction notes

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