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Hydrochloric Acid → (1R,3S)-2,2-dimethyl-3-(6-tosyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyrazin-1-yl)cyclobutanamine

HRID 2204518
ノート
印刷プレビュー

反応式

HRID 2204518 の反応式
[CH3:1][C:2]1([CH3:32])[C@@H:5]([C:6]2[N:10]3[C:11]4[CH:17]=[CH:16][N:15]([S:18]([C:21]5[CH:27]=[CH:26][C:24]([CH3:25])=[CH:23][CH:22]=5)(=[O:20])=[O:19])[C:12]=4[N:13]=[CH:14][C:9]3=[N:8][N:7]=2)[CH2:4][C@H:3]1[NH:28]C(=O)C.C(N[C@@H]1C[C@H](C(O)=O)C1(C)C)(=O)C.CCN(C(C)C)C(C)C.Cl>O1CCOCC1.C(Cl)CCl>[CH3:1][C:2]1([CH3:32])[C@@H:5]([C:6]2[N:10]3[C:11]4[CH:17]=[CH:16][N:15]([S:18]([C:21]5[CH:22]=[CH:23][C:24]([CH3:25])=[CH:26][CH:27]=5)(=[O:20])=[O:19])[C:12]=4[N:13]=[CH:14][C:9]3=[N:8][N:7]=2)[CH2:4][C@H:3]1[NH2:28]
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

7

反応物 4

HCID 313Hydrochloric AcidHCID 81531DiisopropylethylamineHCID 11183048(1S,3R)-3-acetamido-2,2-dimethylcyclobutane-1-carboxylic acidHCID 58010256N-((1R,3S)-2,2-dimethyl-3-(6-tosyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyrazin-1-yl)cyclobutyl)acetamide

生成物 1

HCID 58010300(1R,3S)-2,2-dimethyl-3-(6-tosyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyrazin-1-yl)cyclobutanamine
収率 78%

試薬・触媒・溶媒 2

HCID 111,2-Dichloroethane溶媒HCID 312751,4-Dioxane溶媒

反応条件

温度
100 °C

実験手順

To a solution of N-((1R,3S)-2,2-dimethyl-3-(6-tosyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyrazin-1-yl)cyclobutyl)acetamide (2.20 g, 4.86 mmol, prepared using A from Preparation #9 and (1S,3R)-3-acetamido-2,2-dimethylcyclobutanecarboxylic acid [prepared as described in Tetrahedron: Asymmetry 2008, 19, 302-308] with EDC, C with DIEA) in 1,4-dioxane (30 mL) was added 6 N aqueous HCl (32.4 mL, 194 mmol). The reaction was heated at about 100° C. for about 16 h. The reaction was allowed to cool to ambient temperature and was partitioned between EtOAc (500 mL) and aqueous NaHCO3 (500 mL). The organic layer was dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure to give (1R,3S)-2,2-dimethyl-3-(6-tosyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyrazin-1-yl)cyclobutanamine (1.56 g, 78%) as a tan solid: LC/MS (Table 2, Method a) Rt=1.60 min; MS m/z: 411 (M+H)+.

後処理

  1. temperatureto cool to ambient temperature
  2. customwas partitioned between EtOAc (500 mL) and aqueous NaHCO3 (500 mL)
  3. dry with materialThe organic layer was dried over anhydrous Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-652a69a8ae584d8594d6ba0718b8d422
出典データセット
uspto-grants-2016_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09365579B2

反応ノート

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