1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride → {2-[5-[2-(7-azabicyclo[2.2.1]hept-7-yl)-1,1-dimethyl-2-oxo-ethyl]-2-(3,5-dimethylphenyl)-1H-indol-3-yl]ethyl}carbamic acid tert-butyl ester

HRID 1274246Notes

Reaction equation

HRID 1274246 reaction equation
[C:1]([O:5][C:6]([NH:8][CH2:9][CH2:10][C:11]1[C:19]2[C:14](=[CH:15][CH:16]=[C:17]([C:20]([CH3:25])([CH3:24])[C:21](O)=[O:22])[CH:18]=2)[NH:13][C:12]=1[C:26]1[CH:31]=[C:30]([CH3:32])[CH:29]=[C:28]([CH3:33])[CH:27]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2].Cl.CN(C)CCCN=C=NCC.Cl.[CH:47]12[NH:53][CH:50]([CH2:51][CH2:52]1)[CH2:49][CH2:48]2>C(Cl)Cl.C(N(CC)CC)C>[C:1]([O:5][C:6](=[O:7])[NH:8][CH2:9][CH2:10][C:11]1[C:19]2[C:14](=[CH:15][CH:16]=[C:17]([C:20]([CH3:24])([CH3:25])[C:21]([N:53]3[CH:47]4[CH2:52][CH2:51][CH:50]3[CH2:49][CH2:48]4)=[O:22])[CH:18]=2)[NH:13][C:12]=1[C:26]1[CH:27]=[C:28]([CH3:33])[CH:29]=[C:30]([CH3:32])[CH:31]=1)([CH3:4])([CH3:2])[CH3:3]

Participants

6

Reactant 3

HCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 154585232-[3-(2-tert-butoxycarbonylaminoethyl)-2-(3,5-dimethylphenyl)-1H-indol-5-yl]-2-methylpropionic acidHCID 162795037-Azabicyclo[2.2.1]heptane hydrochloride

Product 1

HCID 11114148{2-[5-[2-(7-azabicyclo[2.2.1]hept-7-yl)-1,1-dimethyl-2-oxo-ethyl]-2-(3,5-dimethylphenyl)-1H-indol-3-yl]ethyl}carbamic acid tert-butyl ester

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8471TriethylamineSolvent

Procedure

To a suspension of 2-[3-(2-tert-butoxycarbonylaminoethyl)-2-(3,5-dimethylphenyl)-1H-indol-5-yl]-2-methylpropionic acid (856 mg in 8.0 mL methylene chloride) at 0° C. was added 310 mg of 1-hydroxybenzotriazole (HOBt)followed by 400 mg 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) and the mixture stirred at low temperature for 90 minutes. At this time, a solution of 7-aza-bicyclo[2.2.1]heptane hydrochloride (632 mg in a mixture of 2.0 mL methylene chloride and 0.66 mL triethylamine) was added and the mixture warmed to room temperature. The reaction was quenched after 24 hours by dilution with methylene chloride and washing with half-saturated brine. The combined organics were dried over magnesium sulfate and the concentrate purified by flash chromatography on silica gel (hexane:ethyl acetate, 70:30; then 60:40; then 50:50; then 40:60) to give the title compound (736 mg).

Workup

  1. additionwas added
  2. customThe reaction was quenched after 24 hours by dilution with methylene chloride
  3. washwashing with half-saturated brine
  4. dry with materialThe combined organics were dried over magnesium sulfate
  5. customthe concentrate purified by flash chromatography on silica gel (hexane

Sources & evidence

ORD record
ord-61845db393314167b321482d1c297dcc
Source dataset
uspto-grants-2000_12
Patent number
US06156772

Reaction notes

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