Dihydroxybenzylamine → 5-[3-({[(3,4-dihydroxyphenyl)methyl]amino}methyl)phenyl]-3-[1-(ethylsulfonyl)-4-piperidinyl]-1H-indole-7-carboxamide

HRID 562047

Reaction equation

HRID 562047 reaction equation
[CH2:1]([S:3]([N:6]1[CH2:11][CH2:10][CH:9]([C:12]2[C:20]3[C:15](=[C:16]([C:29]([NH2:31])=[O:30])[CH:17]=[C:18]([C:21]4[CH:26]=[CH:25][CH:24]=[C:23]([CH:27]=O)[CH:22]=4)[CH:19]=3)[NH:14][CH:13]=2)[CH2:8][CH2:7]1)(=[O:5])=[O:4])[CH3:2].[NH2:32][CH2:33][C:34]1[CH:35]=[C:36]([OH:41])[C:37]([OH:40])=[CH:38][CH:39]=1.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>ClC(Cl)C>[OH:41][C:36]1[CH:35]=[C:34]([CH2:33][NH:32][CH2:27][C:23]2[CH:22]=[C:21]([C:18]3[CH:19]=[C:20]4[C:15](=[C:16]([C:29]([NH2:31])=[O:30])[CH:17]=3)[NH:14][CH:13]=[C:12]4[CH:9]3[CH2:10][CH2:11][N:6]([S:3]([CH2:1][CH3:2])(=[O:5])=[O:4])[CH2:7][CH2:8]3)[CH:26]=[CH:25][CH:24]=2)[CH:39]=[CH:38][C:37]=1[OH:40]

Participants

5

Reactant 3

HCID 91623DihydroxybenzylamineHCID 5049666Sodium triacetoxyborohydrideHCID 577328043-[1-(ethylsulfonyl)-4-piperidinyl]-5-(3-formylphenyl)-1H-indole-7-carboxamide

Product 1

HCID 160382035-[3-({[(3,4-dihydroxyphenyl)methyl]amino}methyl)phenyl]-3-[1-(ethylsulfonyl)-4-piperidinyl]-1H-indole-7-carboxamideYield 15.1%

Reagents, catalysts & solvents 1

HCID 63651,1-DichloroethaneSolvent

Procedure

To a solution of 3-[1-(ethylsulfonyl)-4-piperidinyl]-5-(3-formylphenyl)-1H-indole-7-carboxamide (50 mg, 0.114 mmol) in dichloroethane (2 mL) was added 4-(aminomethyl)-1,2-benzenediol (12.1 mg, 0.087 mmol). The reaction solution was stirred at ambient temperature for 10 min prior to addition of NaBH(OAc)3 (58 mg, 0.261 mmol). The resulting mixture was shaken overnight at ambient temperature after which time the solvent was removed under reduced pressure. The crude product was purified by reverse phase HPLC (water/CH3CN, 0.1% TFA 10-90%) to give the title compound (7.4 mg, 12%).

Workup

  1. stirringThe resulting mixture was shaken overnight at ambient temperature after which time the solvent
  2. customwas removed under reduced pressure
  3. customThe crude product was purified by reverse phase HPLC (water/CH3CN, 0.1% TFA 10-90%)

Sources & evidence

ORD record
ord-6719b0e3858e434fb0c757e45af77b83
Source dataset
uspto-grants-2011_11
Patent number
US08063071B2

Linked notes

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