Dicyclohexylcarbodiimide → Manidipine

HRID 1475169

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HRID 1475169 반응식
[CH3:1][O:2][C:3]([C:5]1[CH:10]([C:11]2[CH:16]=[CH:15][CH:14]=[C:13]([N+:17]([O-:19])=[O:18])[CH:12]=2)[C:9]([C:20]([OH:22])=[O:21])=[C:8]([CH3:23])[NH:7][C:6]=1[CH3:24])=[O:4].C1(N=C=NC2CCCCC2)CCCCC1.CN(C1C=CC=CN=1)C.[CH:49]([N:62]1[CH2:67][CH2:66][N:65]([CH2:68][CH2:69]O)[CH2:64][CH2:63]1)([C:56]1[CH:61]=[CH:60][CH:59]=[CH:58][CH:57]=1)[C:50]1[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=1>C1(C)C=CC=CC=1>[CH3:24][C:6]1[NH:7][C:8]([CH3:23])=[C:9]([C:20]([O:22][CH2:69][CH2:68][N:65]2[CH2:64][CH2:63][N:62]([CH:49]([C:56]3[CH:57]=[CH:58][CH:59]=[CH:60][CH:61]=3)[C:50]3[CH:51]=[CH:52][CH:53]=[CH:54][CH:55]=3)[CH2:67][CH2:66]2)=[O:21])[CH:10]([C:11]2[CH:16]=[CH:15][CH:14]=[C:13]([N+:17]([O-:19])=[O:18])[CH:12]=2)[C:5]=1[C:3]([O:2][CH3:1])=[O:4]

참가 물질

6

반응물 4

HCID 10868DicyclohexylcarbodiimideHCID 218852-DimethylaminopyridineHCID 1733222,6-Dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid monomethyl esterHCID 47425734-(Diphenylmethyl)-1-piperazineethanol

생성물 1

HCID 4008Manidipine수율 54.4%

시약·촉매·용매 1

HCID 1140Toluene용매

반응 조건

온도
72.5 °C

실험 절차

To a suspension of 2,6-dimethyl-4-(3-nitro-phenyl)-1,4-dihydro-pyridine-3,5-dicarboxylic acid monomethyl ester (5 gm), dicyclohexyl carbodiimide (3.08 gm) and dimethylamino pyridine (0.25 gm) in toluene (30 ml) at room temperature was added 2-(4-benzhydryl piperazine-1-yl)ethanol (7.5 gm). Reaction mass was then heated to 70-75° C. for 2 hours. Reaction mass was then cooled to room temperature and filtered. Toluene layer was concentrated under vacuum to get manidipine base (5 gm).

후처리

  1. customReaction mass
  2. customReaction mass
  3. temperaturewas then cooled to room temperature
  4. filtrationfiltered
  5. concentrationToluene layer was concentrated under vacuum

출처 및 근거

ORD 기록
ord-560eb7a71ae64a37af1fd5388192132e
출처 데이터셋
uspto-grants-2015_04
특허 번호
US09018376B2

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