general and efficient protocol for iso‐selective aminocarbonylation of olefins with aliphatic amines has been developed for the first time. Key to the success for this process is the use of a specific 2‐phosphino‐substituted pyrrole ligand in the presence of PdX2 (X=halide) as a pre‐catalyst. Bulk industrial and functionalized olefins react with various aliphatic amines, including amino‐acid derivatives
benzylamine, N-benzylformamide was obtained in 77% yield. 1-Octene was hydroamidated with benzylamine to N-benzylnonanamide in 67% yield (the selectivity to its linear isomer was 81%). These reactions appear to include ruthenium carbamoyl complex as the common key intermediate.
十二碳三钌(Ru 3(CO)12)是一种有效的均相催化剂前体,用于在一氧化碳压力为40 kg cm -2的条件下在120–180°C下进行胺的羰基化和烯烃的加氢酰胺化。通过苄胺的羰基化,以77%的产率获得了N-苄基甲酰胺。用苄胺将1-辛烯加氢酰胺化为N-苄基壬酰胺,产率为67%(其线性异构体的选择性为81%)。这些反应似乎包括钌氨基甲酰基络合物作为常见的关键中间体。
ACYLGUANIDINES FOR TREATING OSTEOARTHRITIS
申请人:MERCK PATENT GMBH
公开号:US20150361037A1
公开(公告)日:2015-12-17
The present invention relates to compounds of the formula (I) and in particular to medicaments comprising at least one compound of the formula I for use in the treatment and/or prophylaxis of physiological and/or pathophysiological conditions in the triggering of which cathepsin D is involved, in particular for use in the treatment and/or prophylaxis of osteoarthritis, traumatic cartilage injuries, arthritis, pain, allodynia or hyperalgesia.