Potassium Phosphate, Tribasic → HCID 58215781, compound

HRID 1630889Notes

Reaction equation

HRID 1630889 reaction equation
Br[C:2]1[CH:3]=[C:4]([CH2:8][NH:9][S:10]([CH3:13])(=[O:12])=[O:11])[CH:5]=[N:6][CH:7]=1.[C:14]([N:21]1[C:29]2[C:24](=[CH:25][CH:26]=[C:27]([Cl:30])[CH:28]=2)[CH:23]=[C:22]1B(O)O)([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15].COC1C=CC=C(OC)C=1C1C=CC=CC=1P(C1CCCCC1)C1CCCCC1.P([O-])([O-])([O-])=O.[K+].[K+].[K+]>C(Cl)Cl.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C1(C)C=CC=CC=1>[C:17]([O:16][C:14]([N:21]1[C:29]2[C:24](=[CH:25][CH:26]=[C:27]([Cl:30])[CH:28]=2)[CH:23]=[C:22]1[C:2]1[CH:7]=[N:6][CH:5]=[C:4]([CH2:8][NH:9][S:10]([CH3:13])(=[O:12])=[O:11])[CH:3]=1)=[O:15])([CH3:20])([CH3:18])[CH3:19]

Participants

8

Reactant 4

HCID 62657Potassium Phosphate, TribasicHCID 112698722-Dicyclohexylphosphino-2',6'-dimethoxybiphenylHCID 441191511-Boc-6-chloroindole-2-boronic acidHCID 59534656N-[(5-Bromo-3-pyridinyl)methyl]methanesulfonamide

Product 1

HCID 58215781HCID 58215781, compound

Reagents, catalysts & solvents 3

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 1140TolueneSolventHCID 6344DichloromethaneSolvent

Conditions

Temperature
85 °C

Procedure

A flask is charged with N-(5-bromo-pyridin-3-ylmethyl)-methanesulfonamide (Example 163a, 530 mg, 2 mmol), N-Boc-6-chloro-indole-2-boronic acid (525 mg, 3.0 mmol), s-Phos (41 mg, 0.10 mmol), finely crushed potassium phosphate (849 mg, 4.0 mmol) and toluene (20 mL), and the mixture is degassed for 15 min. Pd2 dba3 (37 mg, 0.04 mmol) is added and the mixture is stirred at 85° C. for 1 h. The mixture is cooled to room temperature, diluted with DCM and silica gel (10 g) is added. The mixture is concentrated in vacuo and the residue is purified by silica gel flash chromatography eluting with a 0 to 90% ethyl acetate-heptane gradient to give 6-chloro-2-[5-(methanesulfonylamino-methyl)-pyridin-3-yl]-indole-1-carboxylic acid tert-butyl ester. MS (ESI) m/z 436.1 and 437.9 (M+H)+.

Workup

  1. customthe mixture is degassed for 15 min
  2. temperatureThe mixture is cooled to room temperature
  3. additionis added
  4. concentrationThe mixture is concentrated in vacuo
  5. customthe residue is purified by silica gel flash chromatography
  6. washeluting with a 0 to 90% ethyl acetate-heptane gradient

Sources & evidence

ORD record
ord-7cfbd343726a408da4281dc13915d408
Source dataset
uspto-grants-2014_07
Patent number
US08791141B2

Reaction notes

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