Spiro piperidines and homologs which promote release of growth hormone
申请人:Merck & Co., Inc.
公开号:US05536716A1
公开(公告)日:1996-07-16
There are disclosed certain novel compounds identified as spiro piperidines and homologs which promote the release of growth hormone in humans and animals. This property can be utilized to promote the growth of food animals to render the production of edible meat products more efficient, and in humans, to treat physiological or medical conditions characterized by a deficiency in growth hormone secretion, such as short stature in growth hormone deficient children, and to treat medical conditions which are improved by the anabolic effects of growth hormone. Growth hormone releasing compositions containing such spiro compounds as the active ingredient thereof are also disclosed.
performed. The degradationproduct of dexrazoxane is known in the literature; however, the information related to process impurities is not available. For the first time, two process related impurities were isolated, characterized, and confirmed by their individual chemical synthesis. The present study describes the isolation methods of the impurities and their structuralelucidation using IR, 1H, 13C
Three analogs of the cytostatic drug ifosfamide incorporating 1-methyl-2-chloroethyl side chains were designed and prepared as an attempt to obtain drugs of lower toxicity.
Catalytic Chemo‐ and Regioselective Radical Carbocyanation of 2‐Azadienes for the Synthesis of α‐Amino Nitriles
作者:Shengzu Duan、Ya Du、Lingling Wang、Xun Tian、Yujin Zi、Hongbin Zhang、Patrick J. Walsh、Xiaodong Yang
DOI:10.1002/anie.202300605
日期:——
construction of complex α- and β-functionalized α-amino nitrile derivatives through a novel cascade strategy is presented. Alkyl radicals are generated by the photo-mediated reductivedecarboxylation of redox-active esters, captured by 2-azadienes to provide 2-azallyl radicals and cyanized by a copper catalyst.