1,3-Dichloroacetone → (S)-8-chloro-1-(4-chloromethyl-thiazol-2-yl)-12,12a-dihydro-9H,11H-azeto[2,1-c]imidazo[1,5-a][1,4]benzodiazepin-9-one

HRID 1418944노트

반응식

HRID 1418944 반응식
[Cl:1][C:2]1[C:7]2[C:8](=[O:21])[N:9]3[CH2:20][CH2:19][C@H:10]3[C:11]3[N:12]([CH:13]=[N:14][C:15]=3[C:16](=[S:18])[NH2:17])[C:6]=2[CH:5]=[CH:4][CH:3]=1.[Cl:22][CH2:23][C:24](=O)[CH2:25]Cl>O1CCOCC1>[Cl:1][C:2]1[C:7]2[C:8](=[O:21])[N:9]3[CH2:20][CH2:19][C@H:10]3[C:11]3[N:12]([CH:13]=[N:14][C:15]=3[C:16]3[S:18][CH:25]=[C:24]([CH2:23][Cl:22])[N:17]=3)[C:6]=2[CH:5]=[CH:4][CH:3]=1

참가 물질

4

반응물 2

HCID 107931,3-DichloroacetoneHCID 86753957(S)-8-chloro-9-oxo-12,12a-dihydro-9H,11H-azeto[2,1-c]imidazo[1,5-a][1,4]-benzodiazepine-1-thiocarboxamide

생성물 1

HCID 86753958(S)-8-chloro-1-(4-chloromethyl-thiazol-2-yl)-12,12a-dihydro-9H,11H-azeto[2,1-c]imidazo[1,5-a][1,4]benzodiazepin-9-one수율 8.8%

시약·촉매·용매 1

HCID 312751,4-Dioxane용매

실험 절차

A yellow suspension of 7.91 g (0.0248 mol) of (S)-8-chloro-9-oxo-12,12a-dihydro-9H,11H-azeto[2,1-c]imidazo[1,5-a][1,4]-benzodiazepine-1-thiocarboxamide in 160 ml of dioxan was treated with 3.46 g (0.0273 mol) of 1,3-dichloro-2-propanone. The suspension was boiled at reflux for 24 hrs. The suspension obtained was cooled and filtered. The solution was completely freed from the solvents. The crude product was chromatographed over silica gel with cyclohexane/ethyl acetate 1:2 as the eluent and recrystallized from hot acetonitrile. There was obtained 0.85 g (8.7%) of (S)-8-chloro-1-(4-chloromethyl-thiazol-2-yl)-12,12a-dihydro-9H,11H-azeto[2,1-c]imidazo[1,5-a][1,4]benzodiazepin-9-one as white crystals; m.p. 221-223 and [α]D20 =-163.0° (MeOH, c=1%).

후처리

  1. temperatureat reflux for 24 hrs
  2. customThe suspension obtained
  3. temperaturewas cooled
  4. filtrationfiltered
  5. customThe crude product was chromatographed over silica gel with cyclohexane/ethyl acetate 1:2 as the eluent
  6. customrecrystallized from hot acetonitrile

출처 및 근거

ORD 기록
ord-7b3c6c5de6914a129afa7108649a14d0
출처 데이터셋
uspto-grants-1999_03
특허 번호
US05885986

반응 노트

불러오는 중…