专利号:US-2005014954-A1 优先权日:2001-11-22 标 题:Pyrrole synthesis 发明人:OHRLEIN REINHOLD; BAISCH GABRIELE 摘要:The invention relates to a novel process for the preparation of N-substituted pyrroles, especially of formula (V), wherein the radicals are as defined in the description, by intermolecular aza-Wittig reaction starting from organic azides and 1,4-dioxo compounds. The invention relates also to novel iminophosphorane intermediates for this synthesis. The resulting pyrroles are useful, for example, in the organic synthesis of pharmaceuticals or other active substances and chemicals.
专利号:US-8026383-B2 优先权日:2001-07-06 标题:Process for the preparation of intermediates useful in the synthesis of statin derivatives 发明人:OEHRLEIN REINHOLD; BAISCH GABRIELE; END NICOLE; BURKHARDT STEPHAN; STUDER MARTIN 权利人:BASF SE 摘要:The invention relates to novel synthesis methods for the preparation of statin derivatives, which methods proceed by way of a key intermediate of formula I n nwherein X is halogen, acyloxy, activated hydrocarbyloxy, activated hydrocarbylthio or —N(CH 3 )OCH 3 , R a is a hydroxy-protecting group and R b is a carboxy-protecting group, and, as well as to the compound of formula I, to further new intermediates and methods for their preparation by Friedel-Crafts acylation.
专利号:US-7692034-B2 优先权日:2001-07-06 标题:Process for the preparation of 7-amino syn 3,5-dihydroxy heptanoic acid derivatives via 6-cyano syn 3,5-dihydroxy hexanoic acid derivatives 发明人:OEHRLEIN REINHOLD; BAISCH GABRIELE; KIRNER HANS JUERG; BIENEWALD FRANK; BURKHARDT STEPHAN; STUDER MARTIN 权利人:TEVA PHARMA 摘要:The invention relates to novel synthesis methods for the preparation of the intermediates, which are suitable for the preparation of statin derivatives, especially to novel synthesis methods of the intermediate of formula VI wherein R a and R c are each independently of the other hydrogen or a hydroxy-protecting group or together are a bridging hydroxy-protecting group, and R b is a carboxy-protecting group, which methods are carried out by conversion of the intermediate of formula XIX wherein R a and R c are each independently of the other hydrogen or a hydroxy-protecting group, and R b is a carboxy-protective group.
专利号:US-7504532-B2 优先权日:2001-07-06 标 题 :Process for the preparation of 7-amino syn 3,5-dihydroxy heptanoic acid derivatives, intermediates thereof and methods for their preparation 发明人:OEHRLEIN REINHOLD; BAISCH GABRIELE; KIRNER HANS JOERG; BURKHARDT STEPHAN; STUDER MARTIN; BIENEWALD FRANK 权利人:TEVA PHARMA 摘要:Synthesis methods for the preparation of intermediates which are suitable for the preparation of statin derivatives, and especially to synthesis methods for the intermediate of formula (VI) wherein R a ′ and R c ′ are each independently of the other hydrogen or hydroxy-protecting group, or together are a bridging hydroxy-protecting group; and R b is a carboxy-protecting group.
专利号:US-7420078-B2 优先权日:2001-07-06 标 题 :Process for the preparation of intermediates useful in the synthesis of statin derivatives especially 7-amino 3,5-dihydroxy heptanoic acid derivatives, and intermediates thereof
专利号:EP-1404639-A1 优先权日:2001-07-06 标题:Process for the preparation of intermediates useful in the synthesis of statin derivatives especially 7-amino 3,5-dihydroxy heptanoic acid derivatives, and intermediates thereof