1,4-Bis(diphenylphosphino)butane → ({2-[({(3s,7r,8r,9s)-8-(Allyloxy)-7-benzyl-9-methyl-2,6-dioxo-1,5-dioxonan-3-yl}amino)carbonyl]-4-methoxypyridine-3-yl}oxy)methyl acetate

HRID 1071011ノート

反応式

HRID 1071011 の反応式
[C:1]([O:4][CH2:5][O:6][C:7]1[C:8]([C:15]([NH:17][C@H:18]2[CH2:26][O:25][C:24](=[O:27])[C@H:23]([CH2:28][C:29]3[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=3)[C@@H:22]([OH:35])[C@H:21]([CH3:36])[O:20][C:19]2=[O:37])=[O:16])=[N:9][CH:10]=[CH:11][C:12]=1[O:13][CH3:14])(=[O:3])[CH3:2].[CH:38]1[CH:43]=CC(P(C2C=CC=CC=2)CCCCP(C2C=CC=CC=2)C2C=CC=CC=2)=C[CH:39]=1>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[C:1]([O:4][CH2:5][O:6][C:7]1[C:8]([C:15]([NH:17][C@H:18]2[CH2:26][O:25][C:24](=[O:27])[C@H:23]([CH2:28][C:29]3[CH:30]=[CH:31][CH:32]=[CH:33][CH:34]=3)[C@@H:22]([O:35][CH2:43][CH:38]=[CH2:39])[C@H:21]([CH3:36])[O:20][C:19]2=[O:37])=[O:16])=[N:9][CH:10]=[CH:11][C:12]=1[O:13][CH3:14])(=[O:3])[CH3:2]

参加物

4

反応物 2

HCID 821241,4-Bis(diphenylphosphino)butaneHCID 69801412({2-[({(3S,7R,8R,9S)-7-benzyl-8-(hydroxy)-9-methyl-2,6-dioxo-1,5-dioxonan-3-yl}amino)carbonyl]-4-methoxypyridine-3-yl}oxy)methyl acetate

生成物 1

HCID 59989566({2-[({(3s,7r,8r,9s)-8-(Allyloxy)-7-benzyl-9-methyl-2,6-dioxo-1,5-dioxonan-3-yl}amino)carbonyl]-4-methoxypyridine-3-yl}oxy)methyl acetate収率 68%

試薬・触媒・溶媒 1

HCID 9811564Bis(dibenzylideneacetone)palladium触媒

実験手順

Compound 8 was prepared in 68% yield using Compound 3 (150 mg, 0.29 mmol) with dppb (12 mg, 0.03 mmol), Pd2dba3 (5.30 mg, 0.006 mmol) and ethyl methallylcarbonate (41 mg, 0.31 mmol). Purification by flash column chromatography on silica gel eluting with a mixture of hexane-acetone (1:1) gave a white foam: MS: (M+1)+=557, (M−1)+=555. Spectral data were consistent with the assigned structure.

後処理

  1. customPurification by flash column chromatography on silica gel eluting
  2. additionwith a mixture of hexane-acetone (1:1)
  3. customgave a white foam

出典と根拠

ORDレコード
ord-3f1afc5605e34e63adaf46e0a03ecde4
出典データセット
uspto-grants-2005_06
特許番号
US06903219B2

反応ノート

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