Sodium Bicarbonate → tert-Butyl 2-methyl-2-[4-({[(4-methyl-1,3-oxazol-5-yl)methyl]amino}methyl)-phenoxy]-propanoate

HRID 1266527ノート

反応式

HRID 1266527 の反応式
[CH:1]([C:3]1[CH:19]=[CH:18][C:6]([O:7][C:8]([CH3:17])([CH3:16])[C:9]([O:11][C:12]([CH3:15])([CH3:14])[CH3:13])=[O:10])=[CH:5][CH:4]=1)=O.[CH3:20][C:21]1[N:22]=[CH:23][O:24][C:25]=1[CH2:26][NH2:27].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(=O)(O)[O-].[Na+]>ClCCCl>[CH3:16][C:8]([O:7][C:6]1[CH:18]=[CH:19][C:3]([CH2:1][NH:27][CH2:26][C:25]2[O:24][CH:23]=[N:22][C:21]=2[CH3:20])=[CH:4][CH:5]=1)([CH3:17])[C:9]([O:11][C:12]([CH3:15])([CH3:14])[CH3:13])=[O:10]

参加物

6

反応物 4

HCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 22708193tert-Butyl 2-(4-formylphenoxy)-2-methylpropanoateHCID 22708194(4-Methyl-1,3-oxazol-5-yl)methylamine

生成物 1

HCID 22708253tert-Butyl 2-methyl-2-[4-({[(4-methyl-1,3-oxazol-5-yl)methyl]amino}methyl)-phenoxy]-propanoate

試薬・触媒・溶媒 1

HCID 111,2-Dichloroethane溶媒

実験手順

1.25 g (4.73 mmol) of tert-butyl 2-(4-formylphenoxy)-2-methylpropanoate (Example I-4) and 0.64 g (5.67 mmol) of (4-methyl-1,3-oxazol-5-yl)methylamine (Example III-28) are together initially charged in 1,2-dichloroethane. At room temperature, 1.50 g (7.09 mmol) of sodium triacetoxyborohydride are added. The reaction mixture is stirred at room temperature for 4 hours and then admixed with saturated sodium bicarbonate solution and extracted with ethyl acetate. The organic phase is dried over magnesium sulphate and freed from the solvent under reduced pressure. The residue is purified chromatographically on silica gel (dichloromethane/methanol 30:1) and then dried under reduced pressure. This gives 1.104 g (65% of theory) of the title compound.

後処理

  1. extractionextracted with ethyl acetate
  2. dry with materialThe organic phase is dried over magnesium sulphate
  3. customThe residue is purified chromatographically on silica gel (dichloromethane/methanol 30:1)
  4. customdried under reduced pressure

出典と根拠

ORDレコード
ord-336253dcd7664259adace0fb5fed48d3
出典データセット
uspto-grants-2003_04
特許番号
US06548538B2

反応ノート

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