反応 #3587

反応方程式

10,11-dihydro-10-(4-aminobenzoyl)-5H-pyrrolo[2,1-c][1,4]benzodiazepine

2,4-dichlorobenzoyl chloride

triethylamine

→

desired product

収率 53.5%

N-[4-(5H-pyrrolo[2,1-c][1,4]benzodiazepin-10(11H)-ylcarbonyl)phenyl]-2,4-dichlorobenzamide

収率 53.5%

溶媒

ethyl acetate

methylene chloride

反応条件

後処理

1. 1
   その他The bath is removed
2. 2
   workup.STIRRINGthe reaction mixture stirred at room temperature for 18 hours
3. 3
   濃縮The volatiles are concentrated in vacuo
4. 4
   その他to give a residue which
5. 5
   洗浄washed with water, 2N citric acid, 1M NaHCO3 and brine
6. 6
   乾燥The organic layer is dried with Na2SO4
7. 7
   ろ過filtered
8. 8
   濃縮concentrated in vacuo
9. 9
   その他to give a residue which
10. 10
    その他is crystallized from ethyl acetate

実験手順

To a solution of 415 mg of 2,4-dichlorobenzoyl chloride in 5 ml of methylene chloride at 0° C. is added 346 μl of triethylamine. After stirring for 3 minutes, 500 mg of 10,11-dihydro-10-(4-aminobenzoyl)-5H-pyrrolo[2,1-c][1,4]benzodiazepine is added. The bath is removed and the reaction mixture stirred at room temperature for 18 hours. The volatiles are concentrated in vacuo to give a residue which is dissolved in ethyl acetate, washed with water, 2N citric acid, 1M NaHCO3 and brine. The organic layer is dried with Na2SO4, filtered and concentrated in vacuo to give a residue which is crystallized from ethyl acetate to give 420 mg of the desired product as a crystalline solid, m.p., 210°-212° C.

出典