Diisopropyl Ether → 3-Chloro-2-(3-cyclopropylmethoxy-4-difluoromethoxyphenyl)-1,5-dihydropyrrolo[2,3-d]pyridazin-4-one

HRID 2097417ノート

反応式

HRID 2097417 の反応式
[Cl:1][C:2]1[C:10]2[C:9](=[O:11])[NH:8][N:7]=[CH:6][C:5]=2[N:4](COCC[Si](C)(C)C)[C:3]=1[C:20]1[CH:25]=[CH:24][C:23]([O:26][CH:27]([F:29])[F:28])=[C:22]([O:30][CH2:31][CH:32]2[CH2:34][CH2:33]2)[CH:21]=1.ClC1C2C(=O)NN=CC=2N(COCC[Si](C)(C)C)C=1C1C=CC(OC(F)F)=C(OC2CC2)C=1.C(OC(C)C)(C)C.C1CCCCC1>CO.C(Cl)(Cl)Cl>[Cl:1][C:2]1[C:10]2[C:9](=[O:11])[NH:8][N:7]=[CH:6][C:5]=2[NH:4][C:3]=1[C:20]1[CH:25]=[CH:24][C:23]([O:26][CH:27]([F:29])[F:28])=[C:22]([O:30][CH2:31][CH:32]2[CH2:34][CH2:33]2)[CH:21]=1

参加物

7

反応物 4

HCID 7914Diisopropyl EtherHCID 8078CyclohexaneHCID 666024603-Chloro-2-(3-cyclopropylmethoxy-4-difluoromethoxyphenyl)-1-(2-trimethylsilylethoxymethyl)-1,5-dihydropyrrolo[2,3-d]pyridazin-4-oneHCID 666026343-Chloro-2-(3-cyclopropoxy-4-difluoromethoxyphenyl)-1-(2-trimethylsilylethoxymethyl)-1,5-dihydropyrrolo[2,3-d]pyridazin-4-one

生成物 1

HCID 1363466703-Chloro-2-(3-cyclopropylmethoxy-4-difluoromethoxyphenyl)-1,5-dihydropyrrolo[2,3-d]pyridazin-4-one収率 58%

試薬・触媒・溶媒 2

HCID 887Methanol溶媒HCID 6212Chloroform溶媒

実験手順

Reaction was carried out in the same manner as in Example 2-(b) except for using 254 mg (0.496 mmol) of 3-chloro-2-(3-cyclopropylmethoxy-4-difluoromethoxyphenyl)-1-(2-trimethylsilylethoxymethyl)-1,5-dihydropyrrolo[2,3-d]-pyridazin-4-one obtained in Example 36-(a) in place of 3-chloro-2-(3-cyclopropoxy-4-difluoromethoxyphenyl)-1-(2-trimethylsilylethoxymethyl)-1,5-dihydropyrrolo[2,3-d]pyridazin-4-one. After completion of the reaction, diisopropyl ether and cyclohexane were added to the reaction mixture, and the precipitated solid was collected by filtration. The obtained crude solid was applied to silica gel column chromatography (Eluent; chloroform:methanol=9:1 (V/V)), the fractions containing the desired compound were concentrated, methanol and 28% aqueous ammonia were added to the obtained solid, and the mixture was stirred at room temperature for 3 hours. Then, the solution was concentrated under reduced pressure, and the obtained solid was washed with diisopropyl ether and dried under reduced pressure to obtain 100 mg of the title compound as a white solid. (Yield: 58%)

後処理

  1. customReaction
  2. additionwere added to the reaction mixture
  3. filtrationthe precipitated solid was collected by filtration
  4. customThe obtained crude solid

出典と根拠

ORDレコード
ord-b04196d525ad45719acbc616564a497c
出典データセット
uspto-grants-2013_05
特許番号
US08450319B2

反応ノート

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