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 2055541Notes

Reaction equation

HRID 2055541 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-dcd3ef4d50794247adb8066bb8f9494b
Source dataset
uspto-grants-2008_02
Patent number
US07332501B2

Reaction notes

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