Ammonia → HCID 44159812, compound

HRID 517872Notes

Reaction equation

HRID 517872 reaction equation
[CH3:1][N:2]1[CH2:22][CH2:21][C:5]2[N:6]([CH2:14][CH2:15][C:16]([O:18]CC)=O)[C:7]3[CH:8]=[CH:9][C:10]([CH3:13])=[CH:11][C:12]=3[C:4]=2[CH2:3]1.[NH3:23]>>[CH3:1][N:2]1[CH2:22][CH2:21][C:5]2[N:6]([CH2:14][CH2:15][C:16]([NH2:23])=[O:18])[C:7]3[CH:8]=[CH:9][C:10]([CH3:13])=[CH:11][C:12]=3[C:4]=2[CH2:3]1

Participants

3

Reactant 2

HCID 222AmmoniaHCID 23932524HCID 23932524, compound

Product 1

HCID 44159812HCID 44159812, compound

Procedure

Ethyl 3-(1,2,3,4-tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)propanoate (0.1 g, 0.33 mmol) was taken in 4 ml aqueous ammonia and heated at 120 deg C. for 5 min using in microwave. The solid product precipitated out after the reaction was filtered through a Buchner funnel and washed with 10% sodium bicarbonate (10 ml×2) followed by demineralised water (10 ml×2) wash to obtain 1.25 mg of 3-(1,2,3,4-tetrahydro-2,8-dimethylpyrido[4,3-b]indol-5-yl)propanamide as TFA salt after purification by reverse-phase chromatography (C-18, 500 mm×50 mm, Mobile Phase A=0.05% TFA in water, B=0.05% TFA in acetonitrile, Gradient: 10% B to 80% B in 30 min, injection vol. 5 ml). 1H NMR (DMSO) TFA SALT 9.85 (bs, 1H), 7.4-7.45 (m, 2H), 7.2 (s, 1H), 7.0 (d, 1H), 6.85 (s, 1H), 4.3-4.2 (m, 3H), 3.6-3.4 (m, 2H), 3.2-3.1 (m, 2H), 3.0 (s, 3H), 2.7 (m, 2H), 2.3 (s, 3H).

Workup

  1. temperatureheated at 120 deg C
  2. customThe solid product precipitated out after the reaction
  3. filtrationwas filtered through a Buchner funnel
  4. washwashed with 10% sodium bicarbonate (10 ml×2)
  5. washwash

Sources & evidence

ORD record
ord-0dda7160fef44c34a7c1c1eb98a1c4e6
Source dataset
uspto-grants-2015_08
Patent number
US09115137B2

Reaction notes

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