申请人:Richardson-Merrell Inc.
公开号:US04000281A1
公开(公告)日:1976-12-28
Pyrazole derivatives of the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are each hydrogen, methyl, ethyl, n-propyl, isopropyl, or n-butyl and X is hydrogen, hydroxy, methyl, methoxy, chlorine, or bromine, and their acid addition salts have antiviral activity against both RNA and DNA viruses such as myxoviruses, adenoviruses, rhinoviruses, and various viruses of the Herpes group. The compounds are active when administered orally or topically. They may be prepared by heating hydrazine hydrate or an alkyl hydrazine with a 3-benzofuryl ketone.
通式为:##STR1##的吡唑衍生物,其中R.sub.1和R.sub.2分别为氢、甲基、乙基、正丙基、异丙基或正丁基,X为氢、羟基、甲基、甲氧基、氯或溴,并且它们的酸加成盐具有抗RNA和DNA病毒的活性,如流感病毒、腺病毒、鼻病毒和各种疱疹病毒。这些化合物在口服或局部使用时均具有活性。它们可以通过将肼水合物或烷基肼与3-苯并呋酮加热制备。