Phenylguanidine derivatives are provided having the structure ##STR1## wherein R.sup.1 is lower alkyl, cycloalkylalkyl, or phenylalkyl; R.sup.2 is lower alkyl, phenyl or benzyl; and R.sup.3 is lower alkyl, cycloalkylalkyl, lower alkenylalkyl, dihalovinylalkyl, dihalobutadienyl or phenylalkyl; and n is 1 to 5. These compounds are useful as anthelmintic agents.
The compounds of this invention are cephalosporins having various acyl substituents at the 7-position and a substituted tetrazolyl thiomethyl group at the 3-position of the cephem nucleus and intermediates for the preparation thereof. The 7-acylated compounds have antibacterial activity.
Sulfonium compounds, processes for preparing the compounds and
申请人:Taiho Pharmaceutical Company Limited
公开号:US04556737A1
公开(公告)日:1985-12-03
This invention provides novel sulfonium compounds, processes for the preparation of the sulfonium compounds, and pharmacological composition containing the sulfonium compound. The compounds of this invention are useful for treating allergy.
7.beta.-Substituted mercaptoacetamido-7.alpha.-methoxycephalosporanic acid and derivatives thereof are prepared. These compounds are antibacterial agents with improved properties.