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.
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.
One pot synthesis of bridgehead amino alcohols from diamantoid hydrocarbons
作者:Elena A. Ivleva、Maria S. Zaborskaya、Vadim A. Shiryaev、Yuri N. Klimochkin
DOI:10.1080/00397911.2023.2177173
日期:2023.3.19
Abstract An efficient approach for the synthesis of aminoalcohols directly from cage hydrocarbons has been developed. Multigram scalability, good yields and one-pot procedure, that utilize readily available reagents along with synthetic convenience showed its usefulness. The proposed one-pot method includes sequential reactions of cage hydrocarbon with nitric acid, further amination of intermediate
摘要 已经开发出一种直接从笼形烃合成氨基醇的有效方法。多克可扩展性、良好的产量和一锅法,利用现成的试剂以及合成的便利性,显示了它的实用性。所提出的一锅法包括笼式烃与硝酸的连续反应,中间体硝基衍生物与尿素的进一步胺化,然后在添加浓溶液时将先前产生的胺氧化成氨基醇。H 2 SO 4。
One-pot amination of cage hydrocarbons
作者:M. V. Leonova、M. Yu. Skomorokhov、I. K. Moiseev、Yu. N. Klimochkin
DOI:10.1134/s1070428015120064
日期:2015.12
A one-pot procedure has been proposed for the synthesis of amines directly from cage hydrocarbons. A number of cage amines have been synthesized by treatment of adamantane, its homologs, and structurally related cage hydrocarbons with nitric acid in acetic acid and subsequent addition of urea and heating.
Alkylation of adamantane with alkyl halides catalyzed by ruthenium complexes
作者:R. I. Khusnutdinov、N. A. Schchadneva、A. I. Malikov、U. M. Dzhemilev
DOI:10.1134/s0965544106030030
日期:2006.5
The feasibility of catalytic alkylation of adamantane and 1-bromoadamantane with alkyl halides in the presence of ruthenium-containing catalysts was revealed. The optimum molar ratios between the catalyst components and the reactants, as well as the reaction conditions for the selective synthesis of mono- and dialkylsubstituted adamantane derivatives with a 70-98% yield, were determined.
Stepanov,F.N. et al., Journal of Organic Chemistry USSR (English Translation), 1969, vol. 5, p. 2123 - 2125