Potassium Carbonate → 5-(3-(ethylsulfonyl)phenyl)-8-methoxy-3-methyl-9H-pyrido[2,3-b]indol-7-amine

HRID 1642584Notes

Reaction equation

Br[C:2]1[CH:10]=[C:9]([NH2:11])[C:8]([O:12][CH3:13])=[C:7]2[C:3]=1[C:4]1[CH:17]=[C:16]([CH3:18])[CH:15]=[N:14][C:5]=1[NH:6]2.[CH2:19]([S:21]([C:24]1[CH:25]=[C:26](B(O)O)[CH:27]=[CH:28][CH:29]=1)(=[O:23])=[O:22])[CH3:20].O1CCOCC1.C([O-])([O-])=O.[K+].[K+]>CCOC(C)=O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH2:19]([S:21]([C:24]1[CH:29]=[C:28]([C:2]2[CH:10]=[C:9]([NH2:11])[C:8]([O:12][CH3:13])=[C:7]3[C:3]=2[C:4]2[CH:17]=[C:16]([CH3:18])[CH:15]=[N:14][C:5]=2[NH:6]3)[CH:27]=[CH:26][CH:25]=1)(=[O:22])=[O:23])[CH3:20]

Participants

Conditions

Temperature: 140 °C

Procedure

A 5 mL microwave vial was charged with Compound 238 (500 mg, 1.63 mmol), 3-(ethylsulfonyl)phenylboronic acid (419 mg, 1.96 mmol) and Pd(PPh3)4 (188 mg, 0.16 mmol). To the mixture was added dioxane (5 mL) and a saturated aqueous solution of K2CO3 (2.5 mL). The reaction mixture was heated at 140° C. for 20 min. in microwave. The reaction was diluted with EtOAc and washed with aqueous water and brine. The organic extracts were dried (Na2SO4) and concentrated and purified by flash chromatography to yield the title compound (528 mg, 82%).

Workup

washwashed with aqueous water and brine
dry with materialThe organic extracts were dried (Na2SO4)
concentrationconcentrated
custompurified by flash chromatography

Sources & evidence

ORD record: ord-c66d1cfbdc464f5c85e49aac85a1e523
Source dataset: uspto-grants-2012_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08119655B2

Reaction notes

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