C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/387.1, 260/3
C07D 311/84 (2006.01) C07D 295/13 (2006.01) C07D 407/12 (2006.01)
Patent
CA 1083588
ABSTRACT OF THE DISCLOSURE The invention relates to new xanthene-9-carboxylates of the general formula (I), Image (I) wherein R1 and R3 may be the same or different and represent a lower alkyl group, R2 stands for a lower alkyl group or represents a group of the general formula (VI), Image (VI) wherein m is an integer of 2 to 5, or R1 and R2 may form, together with the adjacent nitrogen atom, a five- or six-membered heterocyclic group, and n And m each represent integers of 2 to 5, or salts thereof. The new compounds according to the invention posses cholinolytic and bronchospasmolytic effects and are completely devoid of harmful side-effects. Thus these compounds can be used to great advantage in the therapy. The new compounds of the general formula (I) or their salts can be prepared according to the invention by re- - 2 - acting a dieminoalcohol of the general formula (III), Image (III) wherein R1, R3, m and n each have the same meanings as defined above and R? is lower alkyl group or a group of the general formula -(CH2)m-OH with m as defined above, with a reactive derivative of xanthene-9-carboxylic acid, end, if desired, converting the obtained product into its salt.
255726
Bartok Mihaly
Czombos Jozsef
Felfoldi Karoly
Karpati Egon
Laszlavik Marta
Fetherstonhaugh & Co.
Richter Gedeon Vegyeszeti Gyar Rt
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