تفاعل #9299

معادلة التفاعل

sodium hydrogencarbonate

sodium triacetoxyborohydride

N-cyclopropylmethyl-N-[2-ethyl-7-(2-methoxy-4,6-dimethylphenyl)pyrazolo[1,5-a]pyridin-3-yl]amine

tetrahydro-2H-4-pyrancarbaldehyde

→

title compound

المردود 41.0%

N-Cyclopropylmethyl-N-[2-ethyl-7-(2-methoxy-4,6-dimethylphenyl)pyrazolo[1,5-a]pyridin-3-yl]-N-tetrahydro-2H-4-pyranylmethylamine

المردود 41.0%

المذيبات

ethyl acetate

tetrahydrofuran

ظروف التفاعل

المعالجة

1. 1
   غسيلthe extract was washed with brine
2. 2
   تجفيفAfter drying over anhydrous magnesium sulfate and filtration
3. 3
   تركيزthe solvent was concentrated under reduced pressure
4. 4
   أخرىthe residue was purified by silica gel column chromatography

الإجراء التجريبي

After dissolving N-cyclopropylmethyl-N-[2-ethyl-7-(2-methoxy-4,6-dimethylphenyl)pyrazolo[1,5-a]pyridin-3-yl]amine (255 mg) in tetrahydrofuran (2 mL), tetrahydro-2H-4-pyrancarbaldehyde (173 mg) [CAS No.50675-18-8] and sodium triacetoxyborohydride (241 mg) were added, and the mixture was stirred at room temperature for 1 hour. Saturated aqueous sodium hydrogencarbonate was added to the reaction mixture, extraction was performed with ethyl acetate, and the extract was washed with brine. After drying over anhydrous magnesium sulfate and filtration, the solvent was concentrated under reduced pressure, the residue was purified by silica gel column chromatography, and the title compound (134 mg) was obtained from the n-hexane:ethyl acetate (5:1) fraction as a yellow oil.

المصدر