A “One-Pot” Phase Transfer Alkylation/Hydrolysis of<i>o</i>-Nitrotrifluoroacetanilides. A Convenient Route to<i>N</i>-ALKYL<i>o</i>-Phenylenediamines
作者:Samuel A. Brown、Carmelo J. Rizzo
DOI:10.1080/00397919608003827
日期:1996.11
Abstract A variety of o-nitrotrifluoroacetanilides undergo a one-pot alkylation/hydrolysis to give N-alkyl o-nitroanilines in 40–94% yield. Dimethylsulfate, benzyl bromide and 1-bromo-propane were used as the electrophiles.
Linear Free Energy Substituent Effect on Flavin Redox Chemistry
作者:Justin J. Hasford、Carmelo J. Rizzo
DOI:10.1021/ja972992n
日期:1998.3.1
A systematic study on the effect of various substituents at the 7- and/or 8-position on the redox properties of isoalloxazines (flavins) is reported. The redox properties of these flavin derivative...
The present invention provides a compound represented by the formula (I)
wherein X is a hydrogen atom or a fluorine atom; R is a hydrogen atom or alkyl; R
1
is (1) cyclopropyl optionally substituted by 1 to 3 halogen atoms or (2) phenyl optionally substituted by 1 to 3 halogen atoms; R
2
is alkyl, alkoxy, haloalkoxy, a halogen atom, cyano, etc.; and R
3
is 7-oxo-7,8-dihydro-1,8-naphthyridinyl, 3-pyridyl, etc., or a salt thereof. The compound of the present invention has excellent antimicrobial activity against
Clostridium difficile
and is useful for the prevention or treatment of intestinal infection such as
Clostridium difficile
-associated diarrhea.