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Triethylamine → Tert-butyl (6-carbamoyl-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)methylcarbamate

HRID 1513838
ノート
印刷プレビュー

反応式

HRID 1513838 の反応式
[C:1]([C:4]1[CH:5]=[CH:6][C:7]2[N:8]([C:10]([CH2:13][NH:14][C:15](=[O:21])[O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[N:11][N:12]=2)[N:9]=1)(=[O:3])[NH2:2].C([O:26]C(CC1N2N=C(C(O)=O)C=CC2=NN=1)=O)(C)(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(N(CC)CC)C>CN(C=O)C>[CH3:1][OH:3].[NH4+:2].[OH-:26].[C:1]([C:4]1[CH:5]=[CH:6][C:7]2[N:8]([C:10]([CH2:13][NH:14][C:15](=[O:21])[O:16][C:17]([CH3:19])([CH3:18])[CH3:20])=[N:11][N:12]=2)[N:9]=1)(=[O:3])[NH2:2]
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 8471TriethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 57691087Tert-butyl (6-carbamoyl-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)methylcarbamateHCID 675033743-((Tert-butoxycarbonyl)methyl)-[1,2,4]triazolo[4,3-b]pyridazine-6-carboxylic acid

生成物 2

HCID 21894508Ammonium hydroxide methanol
収率 1%
HCID 57691087Tert-butyl (6-carbamoyl-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)methylcarbamate収率 52%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

tert-butyl (6-carbamoyl-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)methylcarbamate. In a 10 mL round bottom flask under N2 were dissolved 3-((tert-butoxycarbonyl)methyl)-[1,2,4]triazolo[4,3-b]pyridazine-6-carboxylic acid (250 mg, 852 μmol), HATU (389 mg, 1023 μmol), triethylamine (356 μl, 2557 μmol) in 1.5 mL of DMF then was treated with a (92 μl, 4262 μmol) and stirred at rt. After 2 h the reaction mixture based on LC-MS was concentrated under reduced pressure and then purified by MPLC (ISCO) with DCM:MeOH+NH4OH (1%) 100:0 to 90:10 to afforded tert-butyl (6-carbamoyl-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)methylcarbamate (129 mg, 52% yield). MS m/z=293.2 [M+1]+. Calc'd for C12H16N6O3: 292.3.

後処理

  1. additionthen was treated with a (92 μl, 4262 μmol)
  2. concentrationwas concentrated under reduced pressure
  3. custompurified by MPLC (ISCO) with DCM

出典と根拠

ORDレコード
ord-f07c7a6d5fbd48eb97f3c862648b362d
出典データセット
uspto-grants-2012_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08217177B2

反応ノート

読み込み中…

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