摘要:
A compound of the formula: wherein R1 represents a lower alkyl; R2 represents H, an optionally substituted alkyl or an optionally substituted alkenyl; R3 and R4 each represents an optionally substituted lower alkyl or a lower alkoxy, or R3 and R4 form, taken together, an optionally substituted butadienylene; and X1 and X2 each represents an optionally esterified or etherified hydroxy, or a salt thereof is useful for protecting cells from the cytotoxicity of &bgr;-amyloid protein.
摘要翻译:下式的化合物:其中R 1表示低级烷基; R 2表示H,任选取代的烷基或任选取代的烯基; R 3和R 4各自表示任选取代的低级烷基或低级烷氧基,或者R 3和R 4一起形成任选取代的亚二烯基; 并且X 1和X 2各自表示任选酯化或醚化的羟基,或其盐可用于保护细胞免受β-淀粉样蛋白的细胞毒性。
摘要:
A compound useful for central antioxidant having inhibitory activity of degeneration and necrocytosis of cerebral cells of the formula (I): ##STR1## wherein A and B are independently (1) a group of the formula: ##STR2## wherein R.sub.1 and R.sub.2 are independently hydrogen atom, an optionally substituted hydrocarbon residue or an optionally substituted heterocyclic group, or R.sub.1 together with R.sub.2 and the nitrogen atom to which they are bound may form a cyclic amino group, provided that both R.sub.1 and R.sub.2 are not hydrogen atom at the same time, or (2) a group of the formula: ##STR3## wherein D is O or S, R.sub.3 is hydrogen atom, an optionally substituted hydrocarbon residue or an optionally substituted acyl group, m is 1, 2, or 3 and n is 0, 1, 2, 3 or 4;p is 1 or 2, provided that both A may be the same or different when p is 2; andR.sub.4, R.sub.5 and R.sub.6 are independently hydrogen atom, a lower alkyl or a lower alkoxy, or R.sub.5 and R.sub.6 may bond together to form --CH.dbd.CH--CH.dbd.CH--, or a salt thereof.
摘要:
A compound of the formula: ##STR1## wherein R.sup.1 is H or an optionally substituted hydrocarbon or acyl group; ring A is an optionally further substituted benzene ring; n is an integer of 1 to 10; R.sup.2, R.sup.3 and R.sup.4 are H or an optionally substituted hydrocarbon group; R.sup.3 and R.sup.4 may form an optionally substituted heterocyclic group, taken together with the adjacent nitrogen atom; k is an integer of 0 to 3; and m is an integer of 1 to 8; provided that when k=0 and m=2, n is an integer of not less than 2 or a pharmaceutically acceptable salt thereof, exhibiting excellent cholinesterase inhibitory activity and monoamine reuptake inhibitory activity, thus being useful as therapeutic/prophylactic medicaments of senile dementia.
摘要:
A novel compound of the formula ##STR1## wherein Ar represents a tetracyclic fused heterocyclic group which may be substituted; R.sup.1 represents H or a hydrocarbon group which may be substituted; Y represents an amino or nitrogen-containing saturated heterocyclic group which may be substituted, its salt, inhibiting excellent cholinesterase inhibitory activity and monoamine uptake inhibitory activity, thus being useful as therapeutic and/or prophylactic medicaments of senile dementia.
摘要:
A compound of the formula: wherein ring A is an optionally substituted benzene ring; ring B′ is an optionally substituted non-aromatic heterocyclic ring having, the same or different, two or more hetero atoms; R1 is a hydrogen atom or an optionally substituted hydrocarbon group, which may be different from one another in the repetition of n; Y is an optionally substituted amino group or an optionally substituted N-containing saturated heterocyclic group; n denotes an integer of 1 to 10, provided that when the ring B′ is a 5- to 7-membered ring, the ring B′ contains at least one nitrogen atom as hetero atom and n denotes an integer of 2 to 10, or a salt thereof. The compounds and salts thereof have an excellent cholinesterase inhibitory activity and antidepressant activity, and are useful as therapeutic and/or prophylactic medicaments of senile dementia.
摘要:
A novel compound of the formula ##STR1## wherein Ar represents a tetracyclic fused heterocyclic group which may be substituted; R.sup.1 represents H or a hydrocarbon group which may be substituted; Y represents an amino acid or nitrogen-containing saturated heterocyclic group which may be substituted, its salt, inhibiting excellent cholinesterase inhibitory activity and monoamine uptake inhibitory activity, thus being useful as therapeutic and/or prophylactic medicaments of senile dementia.
摘要:
A pharmaceutical composition comprising idebenone in combination with a compound having acetylcholinesterase inhibitory activity is useful for treating or preventing Alzheimer's disease.
摘要:
A novel compound of the formula: ##STR1## wherein Ar represents an optionally substituted tricyclic condensed benzene ring group which includes at least one heterocyclic ring as a component ring; n represents an integer from 2 to 10; R.sup.1 represents H or an optionally substituted hydrocarbon group, which may be different from one another in the repetition of n; and Y represents an optionally substituted 4-piperidinyl, 1-piperazinyl or 4-benzyl-1-piperidinyl group, or a salt thereof, inhibiting excellent cholinesterase inhibitory activity and monoamine reuptake inhibitory activity, thus being useful as therapeutic and/or prophylactic medicaments of senile dementia.
摘要:
A novel compound of the formula: ##STR1## wherein Ar represents an optionally substituted tricyclic condensed benzene ring group which includes at least one heterocyclic ring as a component ring; n represents an integer from 2 to 10; R.sup.1 represents H or an optionally substituted hydrocarbon group, which may be different from one another in the repetition of n; and Y represents an optionally substituted 4-piperidinyl, 1-piperazinyl or 4-benzyl-1-piperidinyl group, or a salt thereof, inhibiting excellent cholinesterase inhibitory activity and monoamine reuptake inhibitory activity, thus being useful as therapeutic and/or prophylactic medicaments of senile dementia.