α‐modification of amides is still a challenge because of the low acidity of α‐CH groups. The α‐functionalization of N−H (primary and secondary) amides, containing both an unactived α‐C−H bond and a competitively active N−H bond, remains elusive. Shown herein is the general and efficient oxidative α‐oxyamination and hydroxylation of aliphaticamides including secondary N−H amides. This transition‐metal‐free
[EN] INHIBITORS OF INFLUENZA VIRUSES REPLICATION<br/>[FR] INHIBITEURS DE LA RÉPLICATION DES VIRUS DE LA GRIPPE
申请人:VERTEX PHARMA
公开号:WO2010148197A1
公开(公告)日:2010-12-23
Methods of inhibiting the replication of influenza viruses in a biological sample or patient, of reducing the amount of influenza viruses in a biological sample or patient, and of treating influenza in a patient, comprises administering to said biological sample or patient an effective amount of a compound represented by Structural Formula (I): or a pharmaceutically acceptable salt thereof, wherein the values of Structural Formula (IA) are as described herein. A compound is represented by Structural Formula (IA) or a pharmaceutically acceptable salt thereof, wherein the values of Structural Formula (IA) are as described herein. A pharmaceutical composition comprises an effective amount of such a compound or pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier, adjuvant or vehicle.
A 4-acylaminopyrazole derivative represented by the following general formula:
wherein R1 is a hydrogen atom, an optionally substituted C1-C16 alkyl group or the like,
R2 and R3 are independently a hydrogen atom, a halogen atom, an optionally substituted C1-C6 alkyl group or the like,
R4 is a hydrogen atom, a C1-C6 alkyl group or a cyano group,
Z is an oxygen atom or a sulfur atom,
Ar is an optionally substituted C6-C14 aryl group or an optionally substituted 5-6 membered unsaturated heterocyclic group,
B is a hydrogen atom, a halogen atom, an optionally substituted C1-C16 alkyl group or the like.
由以下通式代表的 4-酰氨基吡唑衍生物:
其中 R1 是氢原子、任选取代的 C1-C16 烷基或类似基团、
R2 和 R3 独立地为氢原子、卤素原子、任选取代的 C1-C6 烷基或类似基团、
R4 是氢原子、C1-C6 烷基或氰基、
Z 是氧原子或硫原子、
Ar 是任选取代的 C6-C14 芳基或任选取代的 5-6 位元不饱和杂环基团、
B 是氢原子、卤素原子、任选取代的 C1-C16 烷基或类似基团。
Photochemical cyclization of olefinic N-chloroamides
作者:Martin E. Kuehne、Deane A. Horne
DOI:10.1021/jo00897a023
日期:1975.5
PHAN, X. T.;SHANNON, P. J., J. ORG. CHEM., 1983, 48, N 26, 5164-5170