benzyl 8-(1-(tert-butoxycarbonyl)piperidin-4-ylcarbamoyl)-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate → HCID 66589660, compound

HRID 1091893Notes

Reaction equation

HRID 1091893 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([NH:14][C:15]([C:17]2[CH:25]=[CH:24][C:23]3[NH:22][C:21]4[CH2:26][CH2:27][N:28](C(OCC5C=CC=CC=5)=O)[CH2:29][C:20]=4[C:19]=3[CH:18]=2)=[O:16])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]>CO.[Pd]>[CH2:29]1[C:20]2[C:19]3[CH:18]=[C:17]([C:15]([NH:14][CH:11]4[CH2:10][CH2:9][N:8]([C:6]([O:5][C:1]([CH3:4])([CH3:3])[CH3:2])=[O:7])[CH2:13][CH2:12]4)=[O:16])[CH:25]=[CH:24][C:23]=3[NH:22][C:21]=2[CH2:26][CH2:27][NH:28]1

Participants

4

Reactant 1

HCID 44177302benzyl 8-(1-(tert-butoxycarbonyl)piperidin-4-ylcarbamoyl)-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate

Product 1

HCID 66589660HCID 66589660, compound

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 887MethanolSolvent

Procedure

A solution of benzyl 8-(1-(tert-butoxycarbonyl)piperidin-4-ylcarbamoyl)-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate (8 in Scheme 1(m), 1.0 g, 1.9 mmol) and Pd/C (10% wt., 0.2 g) in MeOH (20 mL) was allowed to stir at room temperature overnight. The palladium was then removed by filtration and washed with MeOH; and the resulting clear solution was concentrated to give tert-butyl 4-(2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole-8-carboxamido)piperidine-1-carboxylate as an-off white solid (0.745 g, 100%). MS (ES) 399 (M+H).

Workup

  1. customThe palladium was then removed by filtration
  2. washwashed with MeOH
  3. concentrationand the resulting clear solution was concentrated

Sources & evidence

ORD record
ord-f4d15bee61b343419921e991969b3267
Source dataset
uspto-grants-2012_03
Patent number
US08129390B2

Reaction notes

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