denitrogenative and desulfinative addition of arylsulfonyl hydrazides with nitriles has been successfully achieved under mild conditions. This transformation is a new method for the addition reaction to nitriles with arylsulfonyl hydrazides as arylating agent, thus providing an alternative synthesis of aryl ketones. The reported addition reaction is tolerant to many common functional groups, and works
We report herein a direct method to synthesize 4-aryl-3-butenoic acid through a carboxylic-acid-directed oxidative Heck reaction. The various 4-aryl-3-butenoic acids are easily prepared in moderate to good yields. In view of the promising bioactivity of 4-phenyl-3-butenoic acid previously reported, its derivatives reported here may be bioactive.
[EN] SULFONYL SEMICARBAZIDES, SEMICARBAZIDES AND UREAS, PHARMACEUTICAL COMPOSITIONS THEREOF, AND METHODS FOR TREATING HEMORRHAGIC FEVER VIRUSES, INCLUDING INFECTIONS ASSOCIATED WITH ARENAVIRUSES<br/>[FR] SULFONYL SEMICARBAZIDES, SEMICARBAZIDES ET URÉES, COMPOSITIONS PHARMACEUTIQUES À BASE DE CEUX-CI, ET PROCÉDÉS DE TRAITEMENT DES VIRUS RESPONSABLES DES FIÈVRES HÉMORRAGIQUES, COMPRENANT DES INFECTIONS ASSOCIÉES À DES ARÉNAVIRUS
申请人:SIGA TECHNOLOGIES INC
公开号:WO2012060820A1
公开(公告)日:2012-05-10
Compounds, methods and pharmaceutical compositions for treating viral infections, by administering certain novel semicarbazides, sulfonyl carbazides, ureas and related compounds in therapeutically effective amounts are disclosed. Methods for preparing the compounds and methods of using the compounds and pharmaceutical compositions thereof are also disclosed. In particular, the treatment and prophylaxis of viral infections such as caused by hemorrhagic fever viruses is disclosed, i.e., including but not limited to Arenaviridae (Junin, Machupo, Guanavito, Sabia and Lassa), Filoviridae (ebola and Marburg viruses), Flaviviridae (yellow fever, omsk hemorrhagic fever and Kyasanur Forest disease viruses), and Bunyaviridae (Rift Valley fever).