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

HRID 1806235

Reaction equation

HRID 1806235 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-16a06a40570c43ab95fa819c4bcc2391
Source dataset
uspto-grants-2013_01
Patent number
US08354406B2

Linked notes

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