반응 #3141

반응 방정식

formic acid

1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride

4-(4-acetamido-4-phenylpiperidino)-2-(3,4-dichlorophenyl)-N-[3,5-bis(trifluoromethyl)benzyl]butyl amine

N-methylmorpholine

→

title compound

4-(4-Acetamido-4-phenylpiperidino)-2-(3,4-dichlorophenyl)-N-formyl-N-[3,5-bis(trifluoromethyl)benzyl]butylamine

용매

dichloromethane

dichloromethane

hydrochloric acid

dichloromethane

water

반응 조건

후처리

1. 1
   기타The layers were separated
2. 2
   추출the the aqueous phase was extracted with dichloromethane (10 mL)
3. 3
   세척The combined organic layers were washed (brine)
4. 4
   기타dried
5. 5
   기타evaporated
6. 6
   기타to afford material which
7. 7
   기타was purified by chromatography with dichloromethane:methanol (20:1) as eluent

실험 절차

To a 0° C. solution of formic acid (0.09 mL) in dichloromethane (3 mL) was added 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (0.23 g) and the mixture stirred for 15 minutes. To this mixture was added a solution of 4-(4-acetamido-4-phenylpiperidino)-2-(3,4-dichlorophenyl)-N-[3,5-bis(trifluoromethyl)benzyl]butyl amine (0.40) and N-methylmorpholine (0.13 mL) in dichloromethane (5 mL). The mixture was allowed to warm to room temperature overnight, and was diluted with 1N hydrochloric acid (5 mL), dichloromethane, and water (5 mL). The layers were separated and the the aqueous phase was extracted with dichloromethane (10 mL). The combined organic layers were washed (brine), dried, and evaporated to afford material which was purified by chromatography with dichloromethane:methanol (20:1) as eluent, to give a hydrate of the title compound (0.206 g); mp 108°-110° C.; NMR: 8.1-7.5 (m,6), 7.3 (m,6), 4.75-4.40 (m,2), 3.75-3.3 (m,4), 3.3-3.0 (m,4), 2.85 (m,1), 1.95 (s,3), 2.25-1.80 (m,4); MS: m/z=688(M+1,100%); TLC: Rf =0.46 (10:1 dichloromethane:methanol). Analysis for C33H33Cl2F6N3O2.1.50 H2O: Calculated: C, 55.39; H, 5.07; N, 5.87; Found: C, 55.38; H, 4.77; N, 5.84.

출처