تفاعل #169334

معادلة التفاعل

Benzophenone imine

(5-bromopyridin-3-yl){7-[(1S)-1-methyl-2-(tetrahydro-2H-pyran-2-yloxy)ethyl]-7H-pyrrolo[2,3-d]pyrimidin-5-yl}methanone

2-di-tert-butylphosphino-2′,4′,6′-triisopropylbiphenyl

potassium phosphate tribasic

→

title compound

المردود 70.0%

(5-Aminopyridin-3-yl){7-[(1S)-1-methyl-2-(tetrahydro-2H-pyran-2-yloxy)ethyl]-7H-pyrrolo[2,3-d]pyrimidin-5-yl}methanone

المردود 70.0%

المذيبات

DCM

1,2-dimethoxyethane

ظروف التفاعل

المعالجة

1. 1
   ترشيحfiltered through Arbocel™
2. 2
   غسيلthe pad was washed with DCM (5 mL)
3. 3
   أخرىThe filtrate was evaporated in vacuo
4. 4
   workup.DISSOLUTIONthe crude material was dissolved in THF (10 mL)
5. 5
   workup.ADDITIONAqueous citric acid (5 mL, 2M) was added
6. 6
   workup.STIRRINGthe mixture was stirred at room temperature for 16 hours
7. 7
   workup.ADDITIONWater (40 mL) was added
8. 8
   workup.ADDITIONsodium hydroxide was added
9. 9
   استخلاصThe mixture was extracted with EtOAc (3×40 mL)
10. 10
    تجفيفthe combined organic extracts were dried over magnesium sulfate
11. 11
    أخرىevaporated in vacuo
12. 12
    أخرىThe residue was purified by column chromatography on silica gel (gradient of EtOAc:MeOH 100:0 to 80:20)

الإجراء التجريبي

Benzophenone imine (0.40 mL, 2.4 mmol) was added to (5-bromopyridin-3-yl){7-[(1S)-1-methyl-2-(tetrahydro-2H-pyran-2-yloxy)ethyl]-7H-pyrrolo[2,3-d]pyrimidin-5-yl}methanone (891 mg, 2.0 mmol) (see Preparation 27), tris(dibenzylideneacetone)dipalladium (55 mg, 0.06 mmol), 2-di-tert-butylphosphino-2′,4′,6′-triisopropylbiphenyl (68 mg, 0.16 mmol) and freshly ground potassium phosphate tribasic (1.06 g, 5.0 mmol) in 1,2-dimethoxyethane (4 mL). The mixture was stirred at 50° C. for 17 hours. The reaction mixture diluted with DCM (10 mL), filtered through Arbocel™ and the pad was washed with DCM (5 mL). The filtrate was evaporated in vacuo and the crude material was dissolved in THF (10 mL). Aqueous citric acid (5 mL, 2M) was added and the mixture was stirred at room temperature for 16 hours. Water (40 mL) was added then sodium hydroxide was added to basify the mixture. The mixture was extracted with EtOAc (3×40 mL) and the combined organic extracts were dried over magnesium sulfate and evaporated in vacuo. The residue was purified by column chromatography on silica gel (gradient of EtOAc:MeOH 100:0 to 80:20) to afford the title compound as a white solid in 70% yield, 506 mg.

المصدر