Benzoic Acid → HCID 54529925, compound

HRID 1780509Notes

Reaction equation

HRID 1780509 reaction equation
[CH3:1][N:2]1[C@H:11]2[C@@:6]([CH3:23])([C:7]3[CH:15]=[CH:14][C:13]([C:16]4[CH:21]=[CH:20][CH:19]=[C:18]([NH2:22])[CH:17]=4)=[CH:12][C:8]=3[CH2:9][CH2:10]2)[CH2:5][CH2:4][C:3]1=[O:24].[C:25](O)(=[O:32])[C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1.CN(C)CCCN=C=NCC>ClCCl>[CH3:1][N:2]1[C@H:11]2[C@@:6]([CH3:23])([C:7]3[CH:15]=[CH:14][C:13]([C:16]4[CH:21]=[CH:20][CH:19]=[C:18]([NH:22][C:25](=[O:32])[C:26]5[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=5)[CH:17]=4)=[CH:12][C:8]=3[CH2:9][CH2:10]2)[CH2:5][CH2:4][C:3]1=[O:24]

Participants

5

Reactant 3

HCID 243Benzoic AcidHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 54238570HCID 54238570, compound

Product 1

HCID 54529925HCID 54529925, compoundYield 76%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A 15 mL round bottom flask was charged with (+)-(4aR)-(10bR)-4-methyl-8-(3-aminophenyl)-10b-methyl-1,2,3,4,4a,5,6,10b-octahydrobenzo[f]quinolin-3-one (50 mg, 0.16 mmol), N,N-dimethylaminopyridine (3 mg, 0.024 mmol), benzoic acid (21 mg, 0.18 mmol), and 0.4 mL of dichloromethane. 1-(3-dimethylaminopropyl)-3-ethyl carbodiimide (EDCI) hydrochloride (120 mg, 0.64 mmol) was added in one portion, and the mixture was stirred at room temperature for 10 min. The mixture was diluted with dichloromethane, and the organic phase was washed with water followed by brine. The organic phase was dried over sodium sulfate, concentrated, and chromatographed on silica gel (0-50% methanol/ethyl acetate eluent gradient) to give 50 mg (76%) of the title compound as an amorphous foam. mp 257°-262° (decomp.) FDMS m/e=424. α[D]589 =+62.50 (c=0.61, chloroform).

Workup

  1. washthe organic phase was washed with water
  2. dry with materialThe organic phase was dried over sodium sulfate
  3. concentrationconcentrated
  4. customchromatographed on silica gel (0-50% methanol/ethyl acetate eluent gradient)

Sources & evidence

ORD record
ord-c510c9a2db724439a3f8604a6912b474
Source dataset
uspto-grants-1997_05
Patent number
US05629007

Reaction notes

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