1-Oxa-3,8-diazaspiro[4.5]decan-2-one derivatives with a potent inhibitory effect on neural Ca-uptake and protecting action against TET-induced brain edema and memory and learning deficits
摘要:
A series of novel 1-oxa-3,8-diazaspiro[4.5]decan-2-one derivatives 8-71 were synthesized. Several representatives were examined for their in vitro inhibitory action on Ca-45-uptake into cerebrocortical synaptosomes depolarized by potassium and veratrine and on triethyltin-induced brain edema. Of the compounds displaying most potent inhibitory action on veratrine-induced Ca-45-uptake into cerebrocortical synaptosomes and outstanding protection against triethyltin chloride (TET) induced brain edema in rats, four were tested for their antihypoxic action and prevention of learning and memory deficits elicited by various agents leg, electroshock, diazepam, scopolamine, carbon dioxide and normobaric hypoxia). In some of these tests the four compounds showed remarkable protecting/restoring activity. It is assumed that the beneficial effects of these compounds in brain edema formation are probably related to their actions on intracellular Ca2+- and Na+-movements. These cellular effects may also play role in their antiamnesic actions, but other mechanisms may also be involved. On the basis of results obtained in the tests used, the pharmacological profile of the novel 1-oxa-3,8-diazaspiro [4.5]decan-2-one derivatives seems to differ from that of known Ca2+-antagonists such as flunarizine or nimodipine and Na+-channel blocker, phenytoin. Out of the four most active compounds tested, one (44) was selected for further investigation and this compound is currently under preclinical development with the code name of RGH-2716 or TDN-345.
DOI:
10.1016/s0223-5234(97)84359-0
作为产物:
描述:
8-benzyloxycarbonyl-4-methylene-2-oxo-3-n-propyl-1-oxa-3,8-diazaspiro[ 4,5]decane 、 肼 在
钯氩 、 苯 作用下,
以
水 、 甲醇 为溶剂,
反应 0.25h,
以to give the title compound in 95% yield, m.p.: 96°-97° C.的产率得到4-methylene-2-oxo-3-n-propyl-1-oxa-3,8-diazaspiro[4.5]decane
The invention relates to novel compounds 1-oxa-2-oxo-8- of the formula (I), ##STR1## wherein X means oxygen or an >NR group, wherein R stands for hydrogen, a C.sub.1-12 alkyl, C.sub.3-6 cycloalkyl, carbocyclic C.sub.6-10 aryl or carbocyclic C.sub.6-10 aryl-C.sub.10-4 alkyl group, the latter two groups are optionally substituted on their aromatic moiety by one or more, same or different halogen(s), one or more C.sub.1-4 alkyl or C.sub.1-4 alkoxy group(s); R.sup.1 and R.sup.2 together represent a methylene group or, when X stands for an >NR group, wherein R is as defined above, one of R.sup.1 and R.sup.2 may represent a hydroxyl group whereas the other is a methyl group; R.sup.3 stands for hydrogen or a phenyl group optionally substituted by one or more halogen(s), one or more C.sub.1-4 alkyl or C.sub.1-4 alkoxy or hydroxyl group(s); R.sup.4 means hydrogen, one or more halogen(s), C.sub.1-4 alkyl, C.sub.1-4 alkoxy, hydroxyl or trihalomethyl group(s); and n is 1, 2 or 3 as well as their acid addition and quaternary ammonium salts.
4-Methylene-1-oxa-2-oxo-8-azaspiro[4,5]decane derivatives, pharmaceutical compositions containing them and processes for preparing them
申请人:RICHTER GEDEON VEGYESZETI GYAR R.T.
公开号:EP0413516A2
公开(公告)日:1991-02-20
This invention relates to 4-methylene-2-oxo-8-azas-piro[4,5]decane derivatives of formula (I),
wherein
X represents oxygen or NR, wherein
R represents hydrogen or alkyl or cycloalkyl, or carbocyclic aryl or carbocyclic aryl-alkyl optionally substituted on the aromatic ring by one or more halogen atoms, alkyl or alkoxy .
Ph¹ and Ph², which may be the same or different, each represent phenyl unsubstituted or substituted by one or more halogen atoms or alkyl, alkoxy, trihalomethyl or hydroxy optionally esterified by an alkanoic acid; and
n is 1 or 2;
and optical isomers and mixtures thereof, and all solvates, hydrates, acid addition and quaternary ammonium salts thereof, to pharmaceutical compositions containing these compounds and processes for their preparation.
The compounds of the formula (I) possess antipsychotic properties. Thus, they appear useful for the treatment of psychiatric disorders.
本发明涉及式 (I) 的 4-亚甲基-2-氧代-8-氮杂螺[4,5]癸烷衍生物、
其中
X 代表氧或 NR,其中
R 代表氢或烷基或环烷基,或碳环芳基或碳环芳烷基,可选择在芳香环上被一个或多个卤素原子、烷基或烷氧基取代。
Ph¹和Ph²可以相同或不同,各自代表未取代的苯基或被一个或多个卤素原子或烷基、烷氧基、三卤甲基或羟基任选酯化的烷酸取代的苯基;以及
n 为 1 或 2;
及其光学异构体和混合物,以及它们的所有溶解物、水合物、酸加成盐和季铵盐,以 及含有这些化合物的药物组合物和它们的制备工艺。
式(I)化合物具有抗精神病特性。因此,它们可用于治疗精神疾病。
2-Oxo-1-oxa-8-azaspiro[4,5] decane derivatives, processes for their preparation and pharmaceutical compositions thereof
申请人:RICHTER GEDEON VEGYESZETI GYAR R.T.
公开号:EP0412820B1
公开(公告)日:1994-03-02
2-Oxo-1-oxa-8-azaspiro [4,5] decane derivatives, processes for their preparation and pharmaceutical compositions thereof
申请人:RICHTER GEDEON VEGYESZETI GYAR R.T.
公开号:EP0414422B1
公开(公告)日:1994-04-06
1-Oxa-2-oxo-8-azaspiro[4,5] decane derivatives, processes for their preparation and pharmaceutical compositions thereof