摘要:
A novel compound (2S,3R,4S)-carboxycyclopropylglycine represented by the formula (1): ##STR1## has proved to be the most potent agonist for the N-methyl-D-aspartate (NMDA) receptor which is one of the glutamate receptor sub-types in the mammalian central nervous system. This compound provides useful tools to open a road to the development of glutamic acid receptor antagonists that may have thereapeutic value in epilepsy, neuronal disorders such as Huntington's chorea and Parkinsonism, as well as various acute and chronic neurodegerative disorders.Also disclosed is a process for producing this compound, as well as a process for individually synthesizing four carboxycyclopropylglycine steroisomers including those of the following formulas (1a, 1b, 1c): ##STR2## and the formula (1).
摘要:
(2S,1'R,2'R,3'R)-2-(2,3-dicarboxycyclopropyl)-glycine (DCG-I) and (2S,1'S,2'S,3'S)-2-(2,3-dicarboxycyclopropyl)glycine (DCG-II), as well as methods for synthesizing these compounds are provided. Studies on L-glutamate receptors with the use of DCG-I and DCG-II, which are agonists for NMDA receptors, contribute to the development of remedies for various nervous disorders. Further, DCG-I and DCG-II selectively inhibit monosynaptic reflex even at a low concentration, which makes them useful as a remedy for spastic palsy, an anesthetic and an analgesic.
摘要:
(2R,3S,4S)-.alpha.-(carboxycyclopropyl)glycine of the formula (1) and salts thereof are disclosed. ##STR1## The compound (1) exhibits most potent depolarizing activities among the known NMDA agonists and will be a useful tool to investigate various neuronal functions related to the excitatory amino acid receptors.
摘要:
The present invention relates to alkylenediamine derivatives which relieve urinating contraction and therefore are of value as active ingredients of therapeutic agents for treating dysuria.
摘要:
Novel alkylenediamine derivatives effectively employable glutamate blockers have the formula (I) or (II): ##STR1## wherein each of R.sup.1 and R.sup.6 is an aliphatic hydrocarbon group, an alicyclic hydrocarbon group, an aryl group, or an aralkyl group; each of R.sup.2 and R.sup.7 is an aliphatic hydrocarbon group, an alkoxy group, an aliphatic hydrocarbon group containing an ester bonding, an aliphatic hydrocarbon group containing an ether bonding, or an aryloxy group; each of R.sup.3, R.sup.4, R.sup.5 R.sup.8, R.sup.9 and R.sup.10 is hydrogen, an alkyl group, an alkoxy group, an acyloxy group, an aryl group, an aralkyl group, hydroxyl, a hydroxylalkyl group, halogen, nitrile, nitro, amino, carbamoyl or alkoxycarbonyl; and each of m and n is an integer of 0-3 (m+n does not exceed 3); k is an integer of 1-4; each of p and i is an integer of 2-13; and each of q and j is an integer of 4-7.
摘要翻译:新型亚烷基二胺衍生物有效地可用的谷氨酸盐阻滞剂具有式(I)或(II):其中R 1和R 6各自为脂族烃基,脂环族烃基,芳基 ,或芳烷基; R 2和R 7各自为脂族烃基,烷氧基,含酯键的脂族烃基,含有醚键的脂族烃基或芳氧基; R 3,R 4,R 5,R 9和R 10各自为氢,烷基,烷氧基,酰氧基,芳基,芳烷基,羟基,羟基烷基,卤素,腈,硝基,氨基,氨基甲酰基 或烷氧基羰基; 并且m和n分别为0-3的整数(m + n不超过3); k是1-4的整数; p和i中的每一个是2-13的整数; 并且q和j中的每一个是4-7的整数。
摘要:
A cyclopropylglycine derivative having the following formula: and an intermediate compound for the synthesis of the cyclopropylglycine derivative are novel compounds. The cyclopropylglycine derivative shows a selectivity higher than that of the known agonists to metabotropic L-glutamate receptors, and therefore is a metabotropic type agonist to L-glutamate which has excellent characteristics.
摘要:
Disclosed are new alkylenediamine derivatives of the following formula which are effective for treatment of dysuria are disclosed: ##STR1## wherein R.sup.1 is hydrogen, alkyl, or a substituted or unsubstituted phenyl, naphthyl or aromatic heterocyclic group; R.sup.2 is a substituted or unsubstituted phenyl, naphthyl or aromatic heterocyclic group; R.sup.3 and R.sup.4 represent hydrogen, alkyl, aralkyl or aryl; or R.sup.3 and R.sup.4 are combined to form one of substituted or unsubstituted 5- to 7-membered heterocyclic groups; X is oxygen, sulfur or imino; Y is oxygen or sulfur; Z is --CH.sub.2 --, --CO-- or --CS--; m is an integer of 0-4; n is an integer of 0-4; r is 0 or 1; and p and q represent an integer of 0-5 provided that p plus q is 1-5.
摘要:
Disclosed are new alkylenediamine derivatives of the following formula which are effective for treatment of dysuria are disclosed: ##STR1## wherein R.sup.1 is hydrogen, alkyl, or a substituted or unsubstituted phenyl, naphthyl or aromatic heterocyclic group; R.sup.2 is a substituted or unsubstituted phenyl, naphthyl or aromatic heterocyclic group; R.sup.3 and R.sup.4 represent hydrogen, alkyl, aralkyl or aryl; or R.sup.3 and R.sup.4 are combined to form one of substituted or unsubstituted 5- to 7-membered heterocyclic groups; X is oxygen, sulfur or imino; Y is oxygen or sulfur; Z is --CH.sub.2 --, --CO-- or --CS--; m is an integer of 0-4; n is an integer of 0-4; r is 0 or 1; and p and q represent an integer of 0-5 provided that p plus q is 1-5.
摘要:
Novel alkylenediamine derivatives effectively employable as glutamate blockers have the formula (I) or (II): ##STR1## wherein each of R.sup.1 and R.sup.6 is an aliphatic hydrocarbon group, an alicyclic hydrocarbon group, an aryl group, or an aralkyl group; each of R.sup.2 and R.sup.7 is an aliphatic hydrocarbon group, an alkoxy group, an aliphatic hydrocarbon group containing an ester bonding, an aliphatic hydrocarbon group containing an ether bonding, or an aryloxy group; each of R.sup.3, R.sup.4, R.sup.5, R.sup.8, R.sup.9 and R.sup.10 is hydrogen, an alkyl group, an alkoxy group, an acyloxy group, an aryl group, an aralkyl group, hydroxyl, a hydroxylalkyl group, halogen, nitrile, nitro, amino, carbamoyl or alkoxycarbonyl; and each of m and n is an integer of 0-3 (m+n does not exceed 3); k is an integer of 1-4; each of p and i is an integer of 2-13; and each of q and j is an integer of 4-7.
摘要:
Amino-alcohol derivatives of the formula, ##STR1## where R.sub.1 is a straight or branched alkyl group having 3 to 8 carbon atoms, R.sub.2 and R.sub.3 are each a lower alkyl group, or R.sub.2 and R.sub.3 form a 5- to 7-membered ring together with the adjacent nitrogen atom which may have an oxygen atom attached thereto, R.sub.4 is a hydrogen atom or a lower alkyl group, R.sub.5 is a hydrogen atom or a lower alkyl group, X is a hydrogen or halogen atom or a lower alkyl or lower alkoxy group, and n is an integer of 2 or 3, and acid addition salts thereof, are effectively useful as medicines and agricultural chemicals. Processes are also disclosed for preparing such compounds.