Water → 7-(1-azidoethyl)-6-(3-fluorophenyl)-3-methyl-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one

HRID 58281

反応式

HRID 58281 の反応式
[N:1]([CH:4]([C:6]1[N:7]=[C:8]2[S:16][CH:15]=[C:14]([CH3:17])[N:9]2[C:10](=[O:13])[C:11]=1Br)[CH3:5])=[N+:2]=[N-:3].[F:18][C:19]1[CH:20]=[C:21](B(O)O)[CH:22]=[CH:23][CH:24]=1.C(=O)([O-])[O-].[Na+].[Na+].O>O1CCOCC1.C(OCC)(=O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[N:1]([CH:4]([C:6]1[N:7]=[C:8]2[S:16][CH:15]=[C:14]([CH3:17])[N:9]2[C:10](=[O:13])[C:11]=1[C:23]1[CH:22]=[CH:21][CH:20]=[C:19]([F:18])[CH:24]=1)[CH3:5])=[N+:2]=[N-:3]

参加物

8

反応物 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 27339863-Fluorophenylboronic acidHCID 581114387-(1-azidoethyl)-6-bromo-3-methyl-5H-thiazolo[3,2-a]pyrimidin-5-one

生成物 1

HCID 581114027-(1-azidoethyl)-6-(3-fluorophenyl)-3-methyl-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one収率 61%

試薬・触媒・溶媒 3

HCID 178418397HCID 178418397、化合物触媒HCID 8857Ethyl Acetate溶媒HCID 312751,4-Dioxane溶媒

反応条件

温度
100 °C

実験手順

To a mixture of 7-(1-azido ethyl)-6-bromo-3-methyl-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one (0.50 g, 1.6 mmol) and (3-fluorophenyl)boronic acid (0.27 g, 1.9 mmol) in 1,4-dioxane (10 mL) was added 1 N solution of sodium carbonate in water (2.1 mL, 2.1 mmol) and tetrakis(triphenylphosphine)palladium(0) (0.092 g, 0.080 mmol). The mixture was stirred at 100° C. overnight. After cooling, the mixture was diluted with ethyl acetate, washed with water, dried over Na2SO4, concentrated and purified on silica gel (0-40% ethyl acetate/hexanes) to give the desired product (0.32 g, 61%). LCMS calculated for C15H13FN5OS (M+H)+: m/z=330.1. Found: 330.0. The product was subjected to chiral HPLC separation (ChiralPak IA Column: 20×250 mm, 5 μm; Mobile Phase: 10% Ethanol 90% Hexanes; Flow Rate: 18 mL/min) to give two enantiomers. On analytic HPLC (ChiralPak IA Column: 4.6×250 mm, 5 μm; Mobile Phase: 10% Ethanol-90% Hexanex; Flow Rate: 1 mL/min), the first enantiomer has retention time of 6.38 minutes and the second peak has retention time of 6.99 minutes.

後処理

  1. temperatureAfter cooling
  2. washwashed with water
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated
  5. custompurified on silica gel (0-40% ethyl acetate/hexanes)

出典と根拠

ORDレコード
ord-480775767c964c8e9be65be048f43edb
出典データセット
uspto-grants-2016_09
特許番号
US09434746B2

関連ノート

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