摘要:
There are disclosed s-triazolo[3,4-i]purine derivatives represented by formula:
wherein Y-Z represents
where R⁴ represents hydrogen, alkyl, substituted or unsubstituted aromatic heterocyclic group or substituted or unsubstituted aryl; and X² represents oxygen, sulfur or NH; each of R¹ and R² independently represents hydrogen, alkyl, cycloalkyl, aralkyl or substituted or unsubstituted aryl; R³ represents alkyl, cycloalkyl, aralkyl or substituted or unsubstituted aryl; X¹ represents oxygen or sulfur; and represents a single bond or a double bond or pharmaceutically acceptable salts thereof.
摘要:
Disclosed are anti-dementia agents comprising an antiamnestically effective amount of benzylpyridine derivative of the formula wherein R is an alkyl group. The invention also pertains to the treatment of dementia by administration of such anti-dementia agent.
wherein R 1 represents substituted or unsubstituted lower alkyl, lower alkenyl, lower alkynyl, substituted or unsubstituted alicyclic alkyl, substituted or unsubstituted phenyl, or substituted or unsubstituted benzyl; R 2 represents -(CH2)m-X, wherein m is 2 or 3, and X is
wherein a is NH, O or S, b and d are the same or different and are CH or N, and R 3 is lower alkyl, substituted or unsubstituted alicyclic alkyl, or substituted or unsubstituted phenyl, or wherein e, g and h are the same or different and are CH or N, and R 3 is the same as defined above; Q represents substituted or unsubstituted alicyclic alkyl, wherein R 4 and R 5 are the same or different and are substituted or unsubstituted alicyclic alkyl, wherein Y is single bond or alkylene; and n is 0 or 1, wherein K-M is -CH 2 -CH 2 - or -CH = CH-, and Y is the same as defined above, or wherein Y is the same as defined above; or a pharmacologically acceptable salt thereof is disclosed. This derivative has anti-dementia activity.
摘要:
Disclosed are anti-dementia agents comprising an antiamnestically effective amount of benzylpyridine derivative of the formula wherein R is an alkyl group. The invention also pertains to the treatment of dementia by administration of such anti-dementia agent.
摘要:
Disclosed are xanthine derivatives represented by the following Formula (I):
in which R¹, R², and R³ independently represent hydrogen or lower alkyl; Q¹, Q², and Q³ independently represent hydrogen, lower alkyl, lower alkoxy, or halogen; and X represents -COR⁴ (in which R⁴ represents hydrogen, hydroxy, lower alkyl, or lower alkoxy) or -SO₂R⁵ {in which R⁵ represents hydroxy, lower alkoxy, trifluoromethyl,
in which R⁶ and R⁷ independently represent hydrogen, hydroxy-substituted or unsubstituted lower alkyl, aryl, or
(in which m represents an integer of 1 to 3; and R⁸ and R⁹ independently represent hydrogen or lower alkyl), or
(in which Y represents a single bond, oxygen, or N-R¹⁰ in which R¹⁰ represents hydrogen or lower alkyl; and n1 and n2 independently represent an integer of 1 to 3 )}, and pharmaceutically acceptable salts thereof.
wherein R 1 represents substituted or unsubstituted lower alkyl, lower alkenyl, lower alkynyl, substituted or unsubstituted alicyclic alkyl, substituted or unsubstituted phenyl, or substituted or unsubstituted benzyl;
R 2 represents -(CH2)m-X, wherein m is 2 or 3, and X is
wherein a is NH, O or S, b and d are the same or different and are CH or N, and R 3 is lower alkyl, substituted or unsubstituted alicyclic alkyl, or substituted or unsubstituted phenyl, or
wherein e, g and h are the same or different and are CH or N, and R 3 is the same as defined above; Q represents substituted or unsubstituted alicyclic alkyl,
wherein R 4 and R 5 are the same or different and are substituted or unsubstituted alicyclic alkyl,
wherein Y is single bond or alkylene; and n is 0 or 1,
wherein K-M is -CH 2 -CH 2 - or -CH = CH-, and Y is the same as defined above, or
wherein Y is the same as defined above; or a pharmacologically acceptable salt thereof is disclosed. This derivative has anti-dementia activity.
摘要:
There are disclosed s-triazolo[3,4-i]purine derivatives represented by formula:
wherein Y-Z represents
where R⁴ represents hydrogen, alkyl, substituted or unsubstituted aromatic heterocyclic group or substituted or unsubstituted aryl; and X² represents oxygen, sulfur or NH; each of R¹ and R² independently represents hydrogen, alkyl, cycloalkyl, aralkyl or substituted or unsubstituted aryl; R³ represents alkyl, cycloalkyl, aralkyl or substituted or unsubstituted aryl; X¹ represents oxygen or sulfur; and represents a single bond or a double bond or pharmaceutically acceptable salts thereof.
摘要翻译:公开了由式:表示的三唑并[3,4-i]嘌呤衍生物,其中Y-Z表示,其中R 4表示氢,烷基,取代或未取代的芳族杂环基或取代或未取代的芳基; X 2表示氧,硫或NH; R 1和R 2各自独立地表示氢,烷基,环烷基,芳烷基或取代或未取代的芳基; R 3表示烷基,环烷基,芳烷基或取代或未取代的芳基; X 1表示氧或硫; 和表示单键或双键或其药学上可接受的盐。