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Succinimide → N-(2,6-dichlorobenzoyl)-4-[2,6-dimethoxy-4-(succinimidomethyl)phenyl]-L-phenylalanine tert-butyl ester

HRID 24695
ノート
印刷プレビュー

反応式

HRID 24695 の反応式
CCOC(/N=N/C(OCC)=O)=O.[C:13]([O:17][C:18](=[O:50])[C@H:19]([CH2:31][C:32]1[CH:37]=[CH:36][C:35]([C:38]2[C:43]([O:44][CH3:45])=[CH:42][C:41]([CH2:46]O)=[CH:40][C:39]=2[O:48][CH3:49])=[CH:34][CH:33]=1)[NH:20][C:21](=[O:30])[C:22]1[C:27]([Cl:28])=[CH:26][CH:25]=[CH:24][C:23]=1[Cl:29])([CH3:16])([CH3:15])[CH3:14].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[C:70]1(=[O:76])[NH:74][C:73](=[O:75])[CH2:72][CH2:71]1>C1COCC1>[C:13]([O:17][C:18](=[O:50])[C@H:19]([CH2:31][C:32]1[CH:37]=[CH:36][C:35]([C:38]2[C:39]([O:48][CH3:49])=[CH:40][C:41]([CH2:46][N:74]3[C:73](=[O:75])[CH2:72][CH2:71][C:70]3=[O:76])=[CH:42][C:43]=2[O:44][CH3:45])=[CH:34][CH:33]=1)[NH:20][C:21](=[O:30])[C:22]1[C:23]([Cl:29])=[CH:24][CH:25]=[CH:26][C:27]=1[Cl:28])([CH3:15])([CH3:16])[CH3:14]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 11439SuccinimideHCID 11776TriphenylphosphineHCID 5462977Diethyl azodicarboxylateHCID 54401991N-(2,6-dichlorobenzoyl)-4-[2,6-dimethoxy-4-(hydroxymethyl)phenyl]-L-phenylalanine tert-butyl ester

生成物 1

HCID 22970625N-(2,6-dichlorobenzoyl)-4-[2,6-dimethoxy-4-(succinimidomethyl)phenyl]-L-phenylalanine tert-butyl ester収率 48.2%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

反応条件

温度
0 °C

実験手順

DEAD (0.13 mL) was added to an ice-cooled solution of N-(2,6-dichlorobenzoyl)-4-[2,6-dimethoxy-4-(hydroxymethyl)phenyl]-L-phenylalanine tert-butyl ester (250 mg), triphenylphosphine (175 mg) and succinimide (90 mg) in THF (3 mL) under N. The mixture was stirred at 0° C. for 30 min, and warmed to room temperature and stirred for 2 h. The mixture was partitioned between H2O and EtOAc, and the aqueous layer was extracted with EtOAC. The combined organic layer was dried (MgSO4), and concentrated in vacuo. The residue was purified by preparative TLC (silica gel; eluent: EtOAc/hexane 1:1) to give N-(2,6-dichlorobenzoyl)-4-[2,6-dimethoxy-4-(succinimidomethyl)phenyl]-L-phenylalanine tert-butyl ester (138 mg).

後処理

  1. temperaturewarmed to room temperature
  2. stirringstirred for 2 h
  3. customThe mixture was partitioned between H2O and EtOAc
  4. extractionthe aqueous layer was extracted with EtOAC
  5. dry with materialThe combined organic layer was dried (MgSO4)
  6. concentrationconcentrated in vacuo
  7. customThe residue was purified by preparative TLC (silica gel; eluent: EtOAc/hexane 1:1)

出典と根拠

ORDレコード
ord-56c872874e3840c7b4386e443eca2318
出典データセット
uspto-grants-2005_02
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06855843B2

反応ノート

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