专利号:US-6271375-B1 优先权日:1997-06-30 标 题 :Ortho-metalation process for the synthesis of 2-substituted-1-(tetrazol-5-yl)benzenes 发明人:VILLA MARCO; ALLEGRINI PIETRO; ARRIGHI KATIUSCIA; PAIOCCHI MAURIZIO 权利人:ZAMBON SPA 摘要:A process of direct metalation of phenyltetrazoles useful for preparing compounds of formula (II) intermediates for the synthesis of angiotensin II antagonists is described.
专利号:EP-1546135-B1 优先权日:2002-07-16 标题:Novel synthesis of irbesartan 发明人:NISNEVICH GENNADY; RUKHMAN IGOR; PERTSIKOV BORIS; KAFTANOV JULIA; DOLITZKY BEN-ZION 权利人:TEVA PHARMA 摘要:Provided is a novel synthesis of irbesartan employing a phase transfer catalyst. Also provided is irbesartan having a fine particle size.
专利号:US-6211382-B1 优先权日:1997-07-25 标题 :Process for the preparation of 1,3-diaza-spiro (4.4) non-1-en-4-one derivatives and 1-cyano-1-acylaminocyclopentane intermediates 发明人:HUSZAR CSABA; KIS-TAMAS ATTILA; NEMETH ATTILA; NAD ZSUZSANNA; MAKOVI ZOLTAN; GAJARY ANTAL; KOLLAR ENDRE; ARANYOSI PETER; GYUERE KAROLY; MESZAROS ISTVAN; HARI ZSUZSANNA CSETRIN; SUPIC ATTILA; ZRINYI ILONA DERVALICSNE; DUBOVSZKI KATALIN; PALIN LAJOSNE; KARASH AGNES; BOGNAR ERZSEBET 权利人:SANOFI SYNTHELABO 摘要:Process for the preparation of compounds of formula (I) wherein R means hydrogen atom, or C1-6 alkyl group, or C7-12 aralkyl group or phenyl group, characterised in that a) the compound of formula (III) is reacted with a compound of formula (IV) wherein X means halogen atom or C1-5 alkoxy group or hydroxyl group, and the resulting compound of formula (II) is transformed, in a reaction medium with pH above 7, into the compound of formula (I) or b) the compound of formula (III) is reacted with an anhydride of general formula (V) and the resulting compound of formula (II) transformed, in a reaction medium with pH above 7, into the compound of formula (I), or c) a compound of formula (II) is transformed, in a reaction medium with pH above 7, into the compound of formula (I), and if desired, the resulting compounds of formula (I), before or after isolation, are transformed into acid addition salts, or the compounds of formula (I) are liberated from their acid addition salts. Thus a process for the preparation of intermediates useful in synthesis of angiotensin II antagonists is disclosed.
专利号:US-6239286-B1 优先权日:1997-07-25 标 题:Process for the preparation of 1,3-diaza-spiro (4.4) non-1-en-4-one derivatives and 1-cyano-1-acylamino-cyclopentane intermediates 发明人:KIS-TAMAS ATTILA; HUSZAR CSABA; CASTRO BERTRAND; NEMETH ATTILA; ARANYOSI PETER; GYUERE KAROLY; MESZAROS ISTVAN; ZRINYI ILONA DERVALICSN; DUBOVSZKI KATALIN; PALI LAJOSNE; GAJARY ANTAL; SUPIC ATTILA; NAD ZSUZSANNA; MAKOVI ZOLTAN; KOLLAR ENDRE; HARI ZSUZSANNA CSETRIN; KARASZA GN; BOGNAR ERZSEBET 权利人:SANOFI SYNTHELABO 摘要:Process for the preparation of compounds of formula (I) wherein R means hydrogen atom, or C1-6 alkyl group, or C7-12 aralkyl group or phenyl group, characterised in that: a) the compound of formula (III) is reacted with a compound of formula (IV) wherein X means halogen atom or C1-5 alkoxy group or hydroxyl group and the resulting compound of formula (II) is transformed in the presence of an oxidising agent in a reaction medium with pH above 7, into the compound of formula (I), or b) the compound of formula (III) is reacted with an anhydride of general formula (V) and the resulting compound of formula (II) transformed in the presence of an oxidising agent, in a reaction medium with pH above 7, into the compound of formula (I), or c) a compound of formula (II) is transformed in the presence of an oxidising agent, in a reaction medium with pH above 7, into the compound of formula (I), and if desired, the resulting compounds of formula (I), before or after isolation, are transformed into acid addition salts, or the compounds of formula (I) are liberated from their acid addition salts. Thus a process for the preparation of intermediates useful in synthesis of angiotensin II antagonists is disclosed.
专利号:US-7838683-B2 优先权日:2003-01-16 标题:Synthesis of irbesartan 发明人:NISNEVICH GENNADY; RUKHMAN IGOR; PERTSIKOV BORIS; KAFTANOV JULIA; DOLITZKY BEN-ZION 权利人:TEVA PHARMA 摘要:Provided are a method of making irbesartan via a Suzuki coupling reaction and a novel intermediate, 2-butyl-3-(4′-bromobenzyl)-1,3-diazaspiro[4.4]non-1-ene-4-one, for such process. The novel process includes the step of reacting such intermediate with a protected imidazolephenylboronic acid.
专利号:US-10300471-B2 优先权日:2013-10-08 标题 :Ruthenium-catalyzed synthesis of biaryl compounds in water 发明人:KOOHANG ALI AIDEN; MEHTA ANITA 权利人:CHICAGO DISCOVERY SOLUTIONS LLC 摘要:Using a [RuCl 2 (arene)] 2 complex and a formate source, a directed ortho C—H insertion and aryl-aryl coupling sequence in water provides biaryl compounds useful in the preparation of biologically active molecules and intermediates. Reactions may be conducted in the ambient atmosphere. Ruthenium catalysts prepared from [RuCl 2 (arene)] 2 and a formate source may be prepared in situ or isolated for later use.
参考标题:Synthesis Of Amido-N-Imidazolium Salts And Their Applications As Ligands In Suzuki-Miyaura Reactions: Coupling Of Hetero- Aromatic Halides And The Synthesis Of Milrinone And Irbesartan 作者:Manian Rajesh Kumar,Kyungho Park,Sunwoo Lee |发布日期:2010.12.17 摘要:Catalytic System Based On Palladium-Amido-N-Heterocyclic Carbenes For Suzuki-Miyaura Coupling Reactions Of Heteroaryl Bromides Is Described. A Variety Of Sterically Bulky, Amido-N-Imidazolium Salts Were Synthesized In High Yields From The Corresponding Anilines. This Catalytic System Effectively Promoted Suzuki-Miyaura Couplings Of Heteroaryl Bromides And Chlorides With A Range Of Boronic Acids To
合成参考文献
摘要:Kleemann A., Kutscher B., Reichert D., Bossart M., Pharmaceutical Substances, Thieme [Online], Stuttgart, (2025).