CAS: 18048-64-1; 1-(3,4-Dimethylphenyl)-3-Methyl-1H-Pyrazol-5(4H)-One

相似化合物

86-92-0 89-25-8 29211-55-0

上下游产品

ethyl acetoacetate 3,4-dimethylphenylhydrazine 3,4-dimethylphenylhydrazine hydr°Chloride acetoacetic acid methyl ester 1-(3,4-Dimethylphenyl)-5-hydroxy-3-methyl-1H-pyrazole-4-carbaldehyde

双乙烯酮 反应生成3-甲基-1-(3,4-二甲基苯基)-2-吡唑啉-5-酮
参考文献:Berthold,R.
标题:Berthold,R.

专利信息

专利号:US-12435042-B2
优先权日:2019-07-04
标题:Process for the preparation of key intermediates for the synthesis of Eltrombopag or salt thereof
发明人：STABILE PAOLO; SEMERARO FLORIANA
权利人:F I S —FABBRICA ITALIANA SINTETICI S P A
摘要:Object of the present invention is an improved process for the preparation of key intermediates for the synthesis of Eltrombopag, passing through/using intermediate 5′-Chloro-2′-hydroxy[1,1′-biphenyl]-3-carboxylic acid alkaline metal salt of formula: wherein A is an alkaline metal.

专利号:US-2022298116-A1
优先权日:2019-07-04
标题:Process for the preparation of key intermediates for the synthesis of eltrombopag or salt thereof

专利号:WO-2021001044-A1
优先权日:2019-07-04
标题 :Process for the preparation of key intermediates for the synthesis of eltrombopag or salt thereof

专利号:CN-114072386-A
优先权日:2019-07-04
标题 :Improved process for the preparation of key intermediates for the synthesis of eltrombopag or salts thereof

专利号:EP-3994126-A1
优先权日:2019-07-04
标 题 :Process for the preparation of key intermediates for the synthesis of eltrombopag or salt thereof