Acetylglycine → 4-[5-(2-Acetylamino-acetylamino)-1-benzenesulfonyl-1H-pyrrolo[2,3-b]pyridin-4-ylamino]-piperidine-1-carboxylic acid tert-butyl ester

HRID 1257663Notes

Reaction equation

HRID 1257663 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([NH:14][C:15]2[C:20]([NH2:21])=[CH:19][N:18]=[C:17]3[N:22]([S:25]([C:28]4[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=4)(=[O:27])=[O:26])[CH:23]=[CH:24][C:16]=23)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[C:34]([NH:37][CH2:38][C:39](O)=[O:40])(=[O:36])[CH3:35].CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>CN(C=O)C.O>[C:1]([O:5][C:6]([N:8]1[CH2:9][CH2:10][CH:11]([NH:14][C:15]2[C:20]([NH:21][C:39](=[O:40])[CH2:38][NH:37][C:34](=[O:36])[CH3:35])=[CH:19][N:18]=[C:17]3[N:22]([S:25]([C:28]4[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=4)(=[O:26])=[O:27])[CH:23]=[CH:24][C:16]=23)[CH2:12][CH2:13]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

7

Reactant 4

HCID 10972AcetylglycineHCID 81531DiisopropylethylamineHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 673232814-(5-Amino-1-benzenesulfonyl 1H-pyrrolo[2,3-b]pyridine-4-ylamino)-piperidine-1-carboxylic acid tert-butyl ester

Product 1

HCID 673449224-[5-(2-Acetylamino-acetylamino)-1-benzenesulfonyl-1H-pyrrolo[2,3-b]pyridin-4-ylamino]-piperidine-1-carboxylic acid tert-butyl esterYield 99.2%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

A mixture of 4-(5-amino-1-benzene sulfonyl-1H-pyrrolo[2,3-b]pyridin-4-ylamino)-piperidine-1-carboxylic acid tert-butyl ester (1.00 g, 2.12 mmol), N-acetylglycine (0.30 g, 2.5 mmol), HBTU (1.0 g, 2.8 mmol) and DIEA (1.1 mL, 6.4 mmol) in DMF (5 mL) was stirred at ambient temperature for 20 h. Diluted with water and the solid was collected by filtration, washed with water and dried in vacuum oven at 50° C. for 20 h to afford 4-[5-(2-Acetylamino-acetylamino)-1-benzenesulfonyl-1H-pyrrolo[2,3-b]pyridin-4-ylamino]-piperidine-1-carboxylic acid tert-butyl ester (1.20 g, 99%). This intermediate was suspended in acetic acid (6 mL) and heated at 100° C. for 7 h. Cooled, diluted with DCM and stirred over aqueous sodium bicarbonate solution. Organic layer separated, washed with water, brine dried over sodium sulfate and concentrated in vacuo. The residue was purified by flash chromatography (silica gel, 0-10% MeOH/DCM) to afford 4-[2-(acetylamino-methyl)-6-benzenesulfonyl-6H-1,2,3,5,6-tetraaza-as-indacen-1-yl]-piperidine-1-carboxylic acid tert-butyl ester (0.26 g, 24%): LCMS (Method E, ESI): RT=1.53 min, m+1=553.2.

Workup

  1. filtrationthe solid was collected by filtration
  2. washwashed with water
  3. customdried in vacuum oven at 50° C. for 20 h

Sources & evidence

ORD record
ord-7b5a250b8925495c9b5f6ca8175e1b2f
Source dataset
uspto-grants-2013_06
Patent number
US08461328B2

Reaction notes

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