تفاعل #172007

معادلة التفاعل

5-amino-3-methylisothiazole hydrochloride

(R)-2-(3-bromo-4-cyanophenylamino)-3-cyclohexylpropanamide

BINAP

K2CO3

→

(R)-2-(4-cyano-3-(3-methylisothiazol-5-ylamino)phenylamino)-3-cyclohexylpropanamide

المردود 99.1%

المذيبات

dioxane

ظروف التفاعل

المعالجة

1. 1
   أخرىwas degassed with Ar
2. 2
   workup.ADDITIONWater and EtOAc were added
3. 3
   ترشيحAfter being filtered
4. 4
   أخرىthe organic phase was separated
5. 5
   غسيلwashed with 1N HCl
6. 6
   تجفيفwith 5% NaHCO3, dried over Na2SO4
7. 7
   تركيزconcentrated in vacuo

الإجراء التجريبي

A mixture of (R)-2-(3-bromo-4-cyanophenylamino)-3-cyclohexylpropanamide (222 mg, 0.634 mmol), 5-amino-3-methylisothiazole hydrochloride (126 mg, 0.840 mmol), BINAP (60 mg, 0.096 mmol), Pd(OAc)2 (45 mg, 0.200 mmol) and K2CO3 (360 mg, 2.60 mmol) in dioxane (4 mL) was degassed with Ar, then was stirred at 120 C for 18 h. Water and EtOAc were added. After being filtered, the organic phase was separated, washed with 1N HCl, then with 5% NaHCO3, dried over Na2SO4, concentrated in vacuo to give (R)-2-(4-cyano-3-(3-methylisothiazol-5-ylamino)phenylamino)-3-cyclohexylpropanamide as a solid (241 mg).

المصدر