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Triethylamine → Ethyl cis-4-[(4-amino-5-chloro-2,3-dihydro-2,2-dimethyl-7-benzofuranyl)carbonylamino]-3-methoxy-1-piperidinecarboxylate

HRID 865394
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반응식

HRID 865394 반응식
[NH2:1][C:2]1[C:7]2[CH2:8][C:9]([CH3:12])([CH3:11])[O:10][C:6]=2[C:5]([C:13]([OH:15])=O)=[CH:4][C:3]=1[Cl:16].C(N(CC)CC)C.ClC(OCC)=O.[NH2:30][CH:31]1[CH2:36][CH2:35][N:34]([C:37]([O:39][CH2:40][CH3:41])=[O:38])[CH2:33][CH:32]1[O:42][CH3:43]>ClC(Cl)Cl>[NH2:1][C:2]1[C:7]2[CH2:8][C:9]([CH3:11])([CH3:12])[O:10][C:6]=2[C:5]([C:13]([NH:30][C@H:31]2[CH2:36][CH2:35][N:34]([C:37]([O:39][CH2:40][CH3:41])=[O:38])[CH2:33][C@H:32]2[O:42][CH3:43])=[O:15])=[CH:4][C:3]=1[Cl:16]
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참가 물질

6

반응물 4

HCID 8471TriethylamineHCID 10928Ethyl chloroformateHCID 3019430Ethyl 4-amino-3-methoxypiperidine-1-carboxylateHCID 106577584-Amino-5-chloro-2,2-dimethyl-2,3-dihydrobenzofuran-7-carboxylic acid

생성물 1

HCID 15296155Ethyl cis-4-[(4-amino-5-chloro-2,3-dihydro-2,2-dimethyl-7-benzofuranyl)carbonylamino]-3-methoxy-1-piperidinecarboxylate수율 93.2%

시약·촉매·용매 1

HCID 6212Chloroform용매

반응 조건

온도
10 °C

실험 절차

To a solution of 8.1 parts of 4-amino-5-chloro-2,3-dihydro-2,2-dimethyl-7-benzofurancarboxylic acid in 218 parts of Irichloromethane and 3.43 parts of N,N-diethyl-ethanamine were added dropwise 3.63 parts of ethyl chloroformate, keeping the temperature below 10° C. After stirring for 1/2 hour at 10° C., the whole was added to a solution of 6.26 parts of ethyl 4-amino-3-methoxy-1-piperidinecarboxylate in 145 parts of trichloromethane at 10° C. Stirring was continued for 1/2 hour at room temperature. The reaction mixture was washed with water, NaOH 5% and water and was then dried, filtered and evaporated. The residue was suspended in 2,2'-oxybispropane. The product was filtered off and dried, yielding 12.3 parts (93.2%) of ethyl cis-4-[(4-amino-5-chloro-2,3-dihydro-2,2-dimethyl-7-benzofuranyl)carbonylamino]-3-methoxyl-piperidinecarboxylate (interm. 1).

후처리

  1. customthe temperature below 10° C
  2. stirringStirring
  3. waitwas continued for 1/2 hour at room temperature
  4. washThe reaction mixture was washed with water, NaOH 5% and water
  5. customwas then dried
  6. filtrationfiltered
  7. customevaporated
  8. filtrationThe product was filtered off
  9. customdried

출처 및 근거

ORD 기록
ord-844944132a564366b000257da7e35398
출처 데이터셋
uspto-grants-1996_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05565582

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