Structure-anti-Parkinson activity relationships in the aminoadamantanes. Influence of bridgehead substitution
摘要:
A limited series of bridgehead alkyl-, dialkyl-, and trialkyl-substituted amantadines was synthesized and tested for potential anti-Parkinson activity as dopamine (DA) agonists. The compounds were evaluated using a battery of three murine bioassays, including stimulation of locomotor activity, induction of circling in animals with unilateral striatal lesions, and reversal of reserpine/alpha-methyltyrosine induced akinesia. Apparent mechanistic differences were seen between the methyl-substituted series and the ethyl-substituted series. While activities in both series increase with increasing liphophilicity, the methyl series (1b--d), as well as amantadine itself (1a), exhibit only indirect DA agonist activity, as evidenced by ipsilateral rotation in the circling model and no significant difference from control in reversal of akinesia. The ethyl series (1e,f) exhibits weak but reproducible direct DA agonist activity, as shown by contralateral rotation in the circling assay for 1e and reversal of akinesia by 1e and 1f. The 3-n-propyl derivative (1g) was devoid of any DA agonist activity.
HENKEL, J. G.;HANE, J. T.;GIANUTSOS, G., J. MED. CHEM., 1982, 25, N 1, 51-56
作者:HENKEL, J. G.、HANE, J. T.、GIANUTSOS, G.
DOI:——
日期:——
Method for Inhibition of Potential-Dependent Cation Channel
申请人:Takatoku Hiroko
公开号:US20130045177A1
公开(公告)日:2013-02-21
An excellent potential-dependent cation channel inhibitor or an excellent masking agent is provided. Disclosed is a method for inhibiting a potential-dependent cation channel or a method for masking olfaction, both of which include administering an adamantane derivate represented by the following formula (1) or a salt thereof [wherein R′ and R
2
are identical with or different from each other, and each represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; and X represents —OH, —R
3
—OH (wherein R
3
represents an alkylene group having 1 to 6 carbon atoms), —NH
2
, —R
4
—NH
2
(wherein R
4
represents an alkylene group having 1 to 6 carbon atoms), —COOH, —R
5
—COOH (wherein R
5
represents an alkylene group having 1 to 6 carbon atoms), —CO-R
6
(wherein R
6
represents an alkyl group having 1 to 6 carbon atoms), —CO—R
7
—COO—R
8
(wherein R
7
represents an alkylene group having 1 to 6 carbon atoms, and R
8
represents an alkyl group having 1 to 6 carbon atoms), or —NHCO—R
9
(wherein R
9
represents an alkyl group having 1 to 6 carbon atoms)].
US8481016B2
申请人:——
公开号:US8481016B2
公开(公告)日:2013-07-09
Synthesis and biological evaluation of memantine nitrates as a potential treatment for neurodegenerative diseases
A series of memantine nitrate derivatives, as dual functional compounds with neuroprotective and vasodilatory activity for neurodegenerative diseases, was designed and synthesized.
Structure-anti-Parkinson activity relationships in the aminoadamantanes. Influence of bridgehead substitution
作者:James G. Henkel、Jeffrey T. Hane、Gerald Gianutsos
DOI:10.1021/jm00343a010
日期:1982.1
A limited series of bridgehead alkyl-, dialkyl-, and trialkyl-substituted amantadines was synthesized and tested for potential anti-Parkinson activity as dopamine (DA) agonists. The compounds were evaluated using a battery of three murine bioassays, including stimulation of locomotor activity, induction of circling in animals with unilateral striatal lesions, and reversal of reserpine/alpha-methyltyrosine induced akinesia. Apparent mechanistic differences were seen between the methyl-substituted series and the ethyl-substituted series. While activities in both series increase with increasing liphophilicity, the methyl series (1b--d), as well as amantadine itself (1a), exhibit only indirect DA agonist activity, as evidenced by ipsilateral rotation in the circling model and no significant difference from control in reversal of akinesia. The ethyl series (1e,f) exhibits weak but reproducible direct DA agonist activity, as shown by contralateral rotation in the circling assay for 1e and reversal of akinesia by 1e and 1f. The 3-n-propyl derivative (1g) was devoid of any DA agonist activity.