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Hydrochloric Acid → 4-((R)-5-cyclopentyl-4-ethyl-4,5-dihydro-[1,2,4]triazolo[4,3-f]pteridin-7-ylamino)-3-methoxy-N-methylbenzamide

HRID 476133
ノート
印刷プレビュー

反応式

HRID 476133 の反応式
Cl[C:2]1[N:11]=[CH:10][C:9]2[N:8]3[CH:12]=[N:13][N:14]=[C:7]3[C@@H:6]([CH2:15][CH3:16])[N:5]([CH:17]3[CH2:21][CH2:20][CH2:19][CH2:18]3)[C:4]=2[N:3]=1.[NH2:22][C:23]1[CH:32]=[CH:31][C:26]([C:27]([NH:29][CH3:30])=[O:28])=[CH:25][C:24]=1[O:33][CH3:34].Cl.C([O-])(O)=O.[Na+]>C(O)C.O>[CH:17]1([N:5]2[C:4]3[N:3]=[C:2]([NH:22][C:23]4[CH:32]=[CH:31][C:26]([C:27]([NH:29][CH3:30])=[O:28])=[CH:25][C:24]=4[O:33][CH3:34])[N:11]=[CH:10][C:9]=3[N:8]3[CH:12]=[N:13][N:14]=[C:7]3[C@H:6]2[CH2:15][CH3:16])[CH2:21][CH2:20][CH2:19][CH2:18]1
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

6

反応物 4

HCID 313Hydrochloric AcidHCID 516892Sodium BicarbonateHCID 204444344-Amino-3-methoxy-N-methylbenzamideHCID 59389586(R)-7-chloro-5-cyclopentyl-4-ethyl-4,5-dihydro-[1,2,4]triazolo[4,3-f]pteridine

生成物 1

HCID 248899254-((R)-5-cyclopentyl-4-ethyl-4,5-dihydro-[1,2,4]triazolo[4,3-f]pteridin-7-ylamino)-3-methoxy-N-methylbenzamide収率 78%

試薬・触媒・溶媒

1
HCID 19096565Water ethanol溶媒

反応条件

温度
90 °C

実験手順

To a solution of (R)-7-chloro-5-cyclopentyl-4-ethyl-4,5-dihydro-[1,2,4]triazolo[4,3-f]pteridine (80 mg, 0.263 mmol) in a mixture ethanol/water (1/4, 5 mL) were added 4-amino-3-methoxy-N-methylbenzamide (72 mg, 0.394 mmol) followed by a catalytic amount of concentrated HCl (0.04 mL). The reaction mixture was stirred at 90° C. for 24 hours, then cooled to room temperature and basified with saturated aqueous solution of NaHCO3. The mixture was extracted with ethyl acetate, the organic layer was dried (MgSO4) and the residue purified by flash chromatography to give the title compound as a colourless solid (92 mg, 78% yield); 1H NMR (DMSO D6) 0.75 (3H, t), 1.43-1.60 (4H, m), 1.80-2.07 (6H, m), 2.80 (3H, d), 3.88 (3H, s), 4.19 (1H, m), 5.38 (1H, m), 7.50 (1H, d), 7.59 (1H, s), 7.83 (1H, d), 8.47 (1H, m), 8.67 (1H, s), 9.31 (1H, s), 9.40 (1H, br s); LC/MS M+1 (obs.) 449.3.

後処理

  1. extractionThe mixture was extracted with ethyl acetate
  2. dry with materialthe organic layer was dried (MgSO4)
  3. customthe residue purified by flash chromatography

出典と根拠

ORDレコード
ord-dc8eec947ea346fea60c876cd543c9b6
出典データセット
uspto-grants-2014_01
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08637666B2

反応ノート

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