تفاعل #45346

معادلة التفاعل

Chlorosulfonyl isocyanate

[3,5-Bis(trifluoromethyl)benzyl]{[5′-isopropyl-2′-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}amine

H2O

NaHCO3

→

N-[3,5-bis(trifluoromethyl)benzyl]-N-{[5′-isopropyl-2′-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}urea

المذيبات

CH2Cl2

ظروف التفاعل

المعالجة

1. 1
   workup.WAITat 0° C. for 20 minutes
2. 2
   workup.ADDITIONwas added
3. 3
   استخلاصThe mixture was extracted with CH2Cl2 (2×25 mL)
4. 4
   تجفيفThe organic extracts were dried over Na2SO4
5. 5
   ترشيحfiltered
6. 6
   تركيزconcentrated
7. 7
   أخرىPurification of the residue by flash chromatography with 50% EtOAc/hexanes

الإجراء التجريبي

[3,5-Bis(trifluoromethyl)benzyl]{[5′-isopropyl-2′-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}amine (40.3 mg, 0.073 mmol) (Example 20) was dissolved in CH2Cl2 (3 mL) and the solution was cooled to −78° C. Chlorosulfonyl isocyanate (32 μL, 0.367 mmol) was added dropwise by syringe. The reaction was stirred at −78° C. for 15 minutes, and then at 0° C. for 20 minutes. The reaction was then poured into H2O (15 mL) and saturated NaHCO3 (15 mL) was added. The mixture was extracted with CH2Cl2 (2×25 mL). The organic extracts were dried over Na2SO4, filtered, and concentrated. Purification of the residue by flash chromatography with 50% EtOAc/hexanes afforded N-[3,5-bis(trifluoromethyl)benzyl]-N-{[5′-isopropyl-2′-methoxy-4-(trifluoromethyl)biphenyl-2-yl]methyl}urea. Rf=0.24 (40% EtOAc/hexanes). LCMS=593.3 (M+1)+. 1H NMR (CDCl3, 600 MHz) δ 7.75 (s, 1H), 7.66 (s, 2H), 7.60 (d, J=7.7 Hz, 1H), 7.47 (s, 1H), 7.33 (d, J=8.0 Hz, 1H), 7.25 (dd, J=8.5, 2.3 Hz, 1H), 6.92 (d, J=2.4 Hz, 1H), 6.90 (d, J=8.5 Hz, 1H), 4.80 (d, J=15.8 Hz, 1H), 4.53 (s, 2H), 4.48 (d, J=15.8 Hz, 1H), 4.45 (d, J=17.8 Hz, 1H), 4.07 (d, J=17.8 Hz, 1H), 3.69 (s, 3H), 2.87 (m, 1H), 1.20-1.22 (m, 6H).

المصدر