Back to results
US 5,397,785 AGranted
4-acylaminopyridine derivative
AssigneeMitsubishi Kasei Corporation
InventorsKunihiro Ninomiya, deceased, Ken-ichi Sato, Mamoru Sugano, Akihiro Tobe, Yasuhiro Morinaka, Tomoko Bessho, Haruko Harada
Life of this patent
Estimating the term…
Abstract
A novel 4-acylaminopyridine derivative represented by the following formula (I) is disclosed. ##STR1## The 4-acylaminopyridine derivative of the present invention is useful as a medicine for treating disturbances of memory such as senile dementia and Alzheimer's disease, since it has an action of directly activating malfunctioned cholinergic neuron.
Claims5
A 4-acylaminopyridine derivative represented by the following formula (I):
- ##STR641## wherein R.sup.1 represents a C.sub.2 -C.sub.6 alkyl group or a group represented by the following formula (II):
- ##STR642## wherein R.sup.2 and R.sup.3 together with the nitrogen atom to which both R.sup.2 and R.sup.3 are attached represent ##STR643## and n represents 0 or an integer from 1 to 3;
- ##STR644## represents ##STR645## wherein each of R.sup.10 and R.sup.11 independently represents a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group;
- and ##STR646## represents ##STR647## and a pharmaceutically acceptable acid addition salt thereof.
1 more element
Dependencies are inferred from the claim text.