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Diisopropylethylamine → N-[(3R)-1-Azabicyclo[2.2.2]oct-3-yl]-6-bromo-1-benzofuran-2-carboxamide

HRID 2179564
ノート
印刷プレビュー

反応式

HRID 2179564 の反応式
[Br:1][C:2]1[CH:13]=[CH:12][C:5]2[CH:6]=[C:7]([C:9]([OH:11])=O)[O:8][C:4]=2[CH:3]=1.Cl.Cl.[NH2:16][C@@H:17]1[CH:22]2[CH2:23][CH2:24][N:19]([CH2:20][CH2:21]2)[CH2:18]1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(N(CC)C(C)C)(C)C>CO.CN(C=O)C>[N:19]12[CH2:24][CH2:23][CH:22]([CH2:21][CH2:20]1)[C@@H:17]([NH:16][C:9]([C:7]1[O:8][C:4]3[CH:3]=[C:2]([Br:1])[CH:13]=[CH:12][C:5]=3[CH:6]=1)=[O:11])[CH2:18]2
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 81531DiisopropylethylamineHCID 14744716-Bromo-1-benzofuran-2-carboxylic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 12494972(R)-(+)-3-Aminoquinuclidine Dihydrochloride

生成物 1

HCID 59341401N-[(3R)-1-Azabicyclo[2.2.2]oct-3-yl]-6-bromo-1-benzofuran-2-carboxamide

試薬・触媒・溶媒 2

HCID 887Methanol溶媒HCID 6228Dimethylformamide溶媒

実験手順

3.8 g (15.77 mmol) of 6-bromobenzofuran-2-carboxylic acid (Example 1A), 3.14 g (15.77 mmol) of (R)-3-aminoquinuclidine dihydrochloride, 7.19 g (18.92 mmol) of HATU, 7.34 g (56.76 mmol) of N,N-diisopropylethylamine and 50 ml of DMF are reacted by general method C. The crude product is taken up in methanol and shaken together with acidic ion exchanger (Dowex® WX2-200) for about 20 min. The loaded ion exchanger is washed successively with methanol, dichloromethane and again with methanol. The product is eluted with methanol/triethylamine 90:10. The solvent is removed in a rotary evaporator under reduced pressure. Finally; the last residues of solvent are removed under high vacuum. 5.14 g (85% of theory) of the title compound are isolated. For analysis, a small amount is converted into the hydrochloride with 4N hydrogen chloride in dioxane.

後処理

  1. washThe loaded ion exchanger is washed successively with methanol, dichloromethane and again with methanol
  2. washThe product is eluted with methanol/triethylamine 90:10
  3. customThe solvent is removed in a rotary evaporator under reduced pressure
  4. customthe last residues of solvent are removed under high vacuum

出典と根拠

ORDレコード
ord-472f0907ab4940ddb26b271a5675db1d
出典データセット
uspto-grants-2015_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09067931B2

反応ノート

読み込み中…

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