Sodium Acetate → 2-[3,5-Dichloro-4-(5-isopropyl-1-methyl-6-oxo-1,6-dihydro-pyridazin-3-ylmethyl)-phenyl]-3,5-dioxo-2,3,4,5-tetrahydro-[1,2,4]triazine-6-carbonitrile

HRID 271222ノート

反応式

HRID 271222 の反応式
C([O:3][C:4](=O)[NH:5][C:6](=[O:32])[C:7]([C:30]#[N:31])=[N:8][NH:9][C:10]1[CH:15]=[C:14]([Cl:16])[C:13]([CH2:17][C:18]2[CH:23]=[C:22]([CH:24]([CH3:26])[CH3:25])[C:21](=[O:27])[N:20]([CH3:28])[N:19]=2)=[C:12]([Cl:29])[CH:11]=1)C.C([O-])(=O)C.[Na+]>C(O)(=O)C>[Cl:29][C:12]1[CH:11]=[C:10]([N:9]2[C:4](=[O:3])[NH:5][C:6](=[O:32])[C:7]([C:30]#[N:31])=[N:8]2)[CH:15]=[C:14]([Cl:16])[C:13]=1[CH2:17][C:18]1[CH:23]=[C:22]([CH:24]([CH3:26])[CH3:25])[C:21](=[O:27])[N:20]([CH3:28])[N:19]=1

参加物

4

反応物 2

HCID 517045Sodium AcetateHCID 72574095(2-Cyano-2-{[3,5-dichloro-4-(5-isopropyl-1-methyl-6-oxo-1,6-dihydro-pyridazin-3-ylmethyl)-phenyl]-hydrazono}-acetyl)-carbamic acid ethyl ester

生成物 1

HCID 159812792-[3,5-Dichloro-4-(5-isopropyl-1-methyl-6-oxo-1,6-dihydro-pyridazin-3-ylmethyl)-phenyl]-3,5-dioxo-2,3,4,5-tetrahydro-[1,2,4]triazine-6-carbonitrile収率 51.3%

試薬・触媒・溶媒 1

HCID 176Acetic Acid溶媒

反応条件

温度
120 °C

実験手順

A solution of (2-cyano-2-{[3,5-dichloro-4-(5-isopropyl-1-methyl-6-oxo-1,6-dihydro-pyridazin-3-ylmethyl)-phenyl]-hydrazono}-acetyl)-carbamic acid ethyl ester (95) (190 mg, 0.38 mmol) in glacial acetic acid (4 mL) was treated with sodium acetate (158 mg, 1.15 mmol). The resulting mixture was heated to 120° C. for 3.5 h. The reaction was cooled to 25° C. and was then poured onto water (125 mL). The resulting orange mixture was extracted with ethyl acetate (150 mL). The combined organics were washed with a saturated aqueous sodium chloride solution, dried with magnesium sulfate, treated with Norite neutral decolorizing carbon, filtered through celite and washed with ethyl acetate. The filtrate was concentrated under vacuum. Purification by HPLC (10-90 acetonitrile/water with 0.1% trifluoroacetic acid over 30 min) afforded 2-[3,5-dichloro-4-(5-isopropyl-1-methyl-6-oxo-1,6-dihydro-pyridazin-3-ylmethyl)-phenyl]-3,5-dioxo-2,3,4,5-tetrahydro-[1,2,4]triazine-6-carbonitrile (96) (87.2 mg, 44%) as an off-white solid; ES-HRMS m/e calcd for C19H16Cl2N6O3 (M+H)+ 447.0734, found 447.0735. Exact Mass=446.0661; Molecular Weight=447.2838.

後処理

  1. temperatureThe reaction was cooled to 25° C.
  2. additionwas then poured onto water (125 mL)
  3. extractionThe resulting orange mixture was extracted with ethyl acetate (150 mL)
  4. washThe combined organics were washed with a saturated aqueous sodium chloride solution
  5. dry with materialdried with magnesium sulfate
  6. additiontreated with Norite neutral decolorizing carbon
  7. filtrationfiltered through celite
  8. washwashed with ethyl acetate
  9. concentrationThe filtrate was concentrated under vacuum
  10. customPurification by HPLC (10-90 acetonitrile/water with 0.1% trifluoroacetic acid over 30 min)

出典と根拠

ORDレコード
ord-98a9182e9ac24cb2902ce115de6eeeea
出典データセット
uspto-grants-2008_11
特許番号
US07452882B2

反応ノート

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