Hydrochloric Acid → (S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-1-methyl-2-oxo-1,2,3,5,7,8-hexahydro-4-oxa-1,6-diaza-anthracene-6,7-dicarboxylic acid 6-tert-butyl ester

HRID 13579

反応式

HRID 13579 の反応式
C[O:2][C:3]([CH:5]1[CH2:18][C:17]2[CH:16]=[C:15]3[C:10]([O:11][C@@H:12]([C:21]4[CH:26]=[CH:25][C:24]([O:27][CH2:28][C:29]5[CH:34]=[CH:33][C:32]([Cl:35])=[C:31]([Cl:36])[CH:30]=5)=[CH:23][CH:22]=4)[C:13](=[O:20])[N:14]3[CH3:19])=[CH:9][C:8]=2[CH2:7][N:6]1[C:37]([O:39][C:40]([CH3:43])([CH3:42])[CH3:41])=[O:38])=[O:4].[OH-].[Li+].Cl>C1COCC1.CO>[C:40]([O:39][C:37]([N:6]1[CH:5]([C:3]([OH:4])=[O:2])[CH2:18][C:17]2[CH:16]=[C:15]3[C:10]([O:11][C@@H:12]([C:21]4[CH:26]=[CH:25][C:24]([O:27][CH2:28][C:29]5[CH:34]=[CH:33][C:32]([Cl:35])=[C:31]([Cl:36])[CH:30]=5)=[CH:23][CH:22]=4)[C:13](=[O:20])[N:14]3[CH3:19])=[CH:9][C:8]=2[CH2:7]1)=[O:38])([CH3:43])([CH3:41])[CH3:42]

参加物

5

反応物 3

HCID 313Hydrochloric AcidHCID 3939Lithium HydroxideHCID 66922872(S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-1-methyl-2-oxo-1,2,3,5,7,8-hexahydro-4-oxa-1,6-diaza-anthracene-6,7-dicarboxylic acid 6-tert-butyl ester 7-methyl ester

生成物 1

HCID 66922697(S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-1-methyl-2-oxo-1,2,3,5,7,8-hexahydro-4-oxa-1,6-diaza-anthracene-6,7-dicarboxylic acid 6-tert-butyl ester収率 98.9%

試薬・触媒・溶媒 1

HCID 21899815MeOH tetrahydrofuran溶媒

反応条件

温度
0 °C

実験手順

(S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-1-methyl-2-oxo-1,2,3,5,7,8-hexahydro-4-oxa-1,6-diaza-anthracene-6,7-dicarboxylic acid 6-tert-butyl ester 7-methyl ester (3.0 g) was dissolved in THF-methanol (4:1, 10 mL), 2 N lithium hydroxide solution (4.8 mL) was added, and the resulting reaction mixture was stirred at 0° C. for 5 h. The reaction mixture was neutralized with 1N HCl and extracted with ethyl acetate. The organic layer was washed with brine, dried over sodium sulfate, and the solvent was removed under reduced pressure to afford (S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-1-methyl-2-oxo-1,2,3,5,7,8-hexahydro-4-oxa-1,6-diaza-anthracene-6,7-dicarboxylic acid 6-tert-butyl ester (2.9 g). LC-MS (m/z) 614. The Boc group of (S)-3-[4-(3,4-Dichloro-benzyloxy)-phenyl]-1-methyl-2-oxo-1,2,3,5,7,8-hexahydro-4-oxa-1,6-diaza-anthracene-6,7-dicarboxylic acid 6-tert-butyl ester 7-methyl ester may be removed to provide the compound Intermediate C (“Intermediate C”).

後処理

  1. customthe resulting reaction mixture
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with brine
  4. dry with materialdried over sodium sulfate
  5. customthe solvent was removed under reduced pressure

出典と根拠

ORDレコード
ord-ae30c46c825c40be94ab225237cc6038
出典データセット
uspto-grants-2010_06
特許番号
US07727983B2

関連ノート

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