Dichloroacetic Acid → 3beta-benzoyloxy-21,21-dimethoxy-20-methyl-1alpha-(N-methylcarbamoyl)oxypregna-5,7-diene

HRID 1196365노트

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HRID 1196365 반응식
[C:1]([O:9][C@H:10]1[CH2:33][C@H:32]([O:34][C:35](=[O:38])[NH:36][CH3:37])[C@@:31]2([CH3:39])[C@@:12](O)([CH:13]=[CH:14][C@@H:15]3[C@@H:30]2[CH2:29][CH2:28][C@@:27]2([CH3:40])[C@H:16]3[CH2:17][CH2:18][C@@H:19]2[CH:20]([CH3:26])[CH:21]([O:24][CH3:25])[O:22][CH3:23])[CH2:11]1)(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.ClC(Cl)C(O)=O>O1CCCC1>[C:1]([O:9][C@H:10]1[CH2:33][C@H:32]([O:34][C:35](=[O:38])[NH:36][CH3:37])[C@@:31]2([CH3:39])[C:12](=[CH:13][CH:14]=[C:15]3[C@@H:30]2[CH2:29][CH2:28][C@@:27]2([CH3:40])[C@H:16]3[CH2:17][CH2:18][C@@H:19]2[CH:20]([CH3:26])[CH:21]([O:24][CH3:25])[O:22][CH3:23])[CH2:11]1)(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

참가 물질

4

반응물 2

HCID 6597Dichloroacetic AcidHCID 678529103beta-benzoyloxy-21,21-dimethoxy-20-methyl-1alpha-(N-methylcarbamoyl)oxypregn-6-en-5alpha-ol

생성물 1

HCID 678529803beta-benzoyloxy-21,21-dimethoxy-20-methyl-1alpha-(N-methylcarbamoyl)oxypregna-5,7-diene수율 35.4%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

In 10 ml of tetrahydrofuran was dissolved 350 mg of 3β-benzoyloxy-21,21-dimethoxy-20-methyl-1α-(N-methylcarbamoyl)oxypregn-6-en-5α-ol, followed by addition of 50 mg of dichloroacetic acid. The mixture was refluxed in an atmosphere of argon gas for 12 hours. The reaction mixture was then worked up in the same manner as Example 124 to give 120 mg of 3β-benzoyloxy-21,21-dimethoxy-20-methyl-1α-(N-methylcarbamoyl)oxypregna-5,7-diene showing the following physical properties.

후처리

  1. temperatureThe mixture was refluxed in an atmosphere of argon gas for 12 hours

출처 및 근거

ORD 기록
ord-da6d9a90b4bc44ef99d4a6c4d2b1aa14
출처 데이터셋
uspto-grants-1992_05
특허 번호
US05112998

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