Synthèse et structure de dérivés amino-3 dihydro-4,5 1H-pyrazole; effets inhibiteurs sur la cyclooxygénase, la lipoxygénase, la thromboxane synthétase et l'agrégation plaquettaire
Heterocyclic compounds of formula (I)
and their acid addition salts exhibit anti-inflammatory activity and when administered topically do not provide the side-effects associated with their systemic administration. The novel compounds of formula (I) may be prepared by methods known in the art and may be topically administered as the compound alone or in a suitable pharmaceutical formulation.
Preparation of aminopyrazolines and intermediates used therein
申请人:THE WELLCOME FOUNDATION LIMITED
公开号:EP0119450A1
公开(公告)日:1984-09-26
A process for the preparation of 3-(N-substituted amino)-2-pyrazolines, of formula (I)
which comprises
(i) reacting of a compound of formula (II)
with a compound serving to effect substitution of a group R' on the amino group attached to the 3-position of the pyrazoline ring in the compound of formula (II), thereby to form a compound of formula (III)
and converting the compound of formula (III) to a compound of formula (I) or an acid addition salt thereof.
Certain of the intermediates of formula (III) are novel and possess pharmacological activity.
Pyrazoline derivatives, processes for their preparation and pharmaceutical formulations containing them
申请人:THE WELLCOME FOUNDATION LIMITED
公开号:EP0055418B1
公开(公告)日:1986-02-26
US4564684A
申请人:——
公开号:US4564684A
公开(公告)日:1986-01-14
Synthèse et structure de dérivés amino-3 dihydro-4,5 1H-pyrazole; effets inhibiteurs sur la cyclooxygénase, la lipoxygénase, la thromboxane synthétase et l'agrégation plaquettaire