Acetic Acid → 1'-[(6-Chloro-1-{[(3S)-1-methylpiperidin-3-yl]methyl}-1H-indol-3-yl)carbonyl]-3H-spiro[2-benzofuran-1,4'-piperidine]

HRID 1866025Notes

Reaction equation

HRID 1866025 reaction equation
[Cl:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([C:18]([N:20]3[CH2:25][CH2:24][C:23]4([C:29]5[CH:30]=[CH:31][CH:32]=[CH:33][C:28]=5[CH2:27][O:26]4)[CH2:22][CH2:21]3)=[O:19])=[CH:7][N:8]2[CH2:11][C@H:12]2[CH2:17][CH2:16][CH2:15][NH:14][CH2:13]2)=[CH:4][CH:3]=1.[CH3:34]C(O)=O.[BH3-]C#N.[Na+]>CO>[Cl:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([C:18]([N:20]3[CH2:21][CH2:22][C:23]4([C:29]5[CH:30]=[CH:31][CH:32]=[CH:33][C:28]=5[CH2:27][O:26]4)[CH2:24][CH2:25]3)=[O:19])=[CH:7][N:8]2[CH2:11][C@H:12]2[CH2:17][CH2:16][CH2:15][N:14]([CH3:34])[CH2:13]2)=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 176Acetic AcidHCID 5003444Sodium cyanoborohydrideHCID 596575381'-({6-Chloro-1-[(3S)-piperidin-3-ylmethyl]-1H-indol-3-yl}carbonyl)-3H-spiro[2-benzofuran-1,4'-piperidine]

Product 1

HCID 596575681'-[(6-Chloro-1-{[(3S)-1-methylpiperidin-3-yl]methyl}-1H-indol-3-yl)carbonyl]-3H-spiro[2-benzofuran-1,4'-piperidine]

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A solution of 1′-({6-chloro-1-[(3S)-piperidin-3-ylmethyl]-1H-indol-3-yl}carbonyl)-3H-spiro[2-benzofuran-1,4′-piperidine] in MeOH was treated with aq. H2CO (1.5 eq), AcOH (1.1 eq) and stirred for 15 min at room temperature, then treated with NaCNBH3 (1.1 eq) and stirred at room temperature for 1 h. Concentration and purification by preparative HPLC the desired product. ES-MS m/e (%): 478.2 (M+H+).

Workup

  1. stirringstirred at room temperature for 1 h
  2. concentrationConcentration and purification by preparative HPLC the desired product

Sources & evidence

ORD record
ord-bb18e8e2ad904d2ca1a5c3ab66065b89
Source dataset
uspto-grants-2009_12
Patent number
US07629353B2

Reaction notes

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