Nitrophenyl derivatives of pyrrole 2,5-diamides: structural behaviour, anion binding and colour change signalled deprotonationElectronic supplementary information (ESI) available: 1H NMR, 13C NMR and mass spectra for compounds 2 and 3, NMR anion titration profiles in DMSO-d6–0.5% water. See http://www.rsc.org/suppdata/ob/b2/b210848h/

2003 ◽  
Vol 1 (4) ◽  
pp. 741-744 ◽  
Author(s):  
Salvatore Camiolo ◽  
Philip A. Gale ◽  
Michael B. Hursthouse ◽  
Mark E. Light

2018 ◽  
Vol 17 (6) ◽  
pp. 448-457 ◽  
Author(s):  
Xia Huang ◽  
Tie Chen ◽  
Rong-Bi Han ◽  
Feng-Yu Piao

Background & Objective: A series of novel 3-Substituted-1,3,4,5-Tetrahydro-2H-benzo [b] azepine-2-one Derivatives (4, 5, 7, 10, 12, 5a-j, 8a-e) were synthesized from 1,2,3,4-Tetrahydro-1- naphthalenone. The structures of these compounds were confirmed by IR, 1H NMR, 13C NMR, MASS spectra and elemental analysis. Their anticonvulsant activity was evaluated by the maximal electroshock (MES) test, subcutaneous pentylenetetrazol (scPTZ) test, and their neurotoxicity was evaluated by the rotarod neurotoxicity test. Compound 4 showed the maximum anticonvulsant activity against the maximal electroshock test (ED50=26.4, PI =3.2) and against the subcutaneous pentylenetetrazol test (ED50=40.2, PI =2.1). Conclusion: Possible structure-activity relationship was discussed.



Chemosphere ◽  
1989 ◽  
Vol 19 (8-9) ◽  
pp. 1349-1356 ◽  
Author(s):  
Tauno Kuokkanen
Keyword(s):  
1H Nmr ◽  
13C Nmr ◽  


INDIAN DRUGS ◽  
2012 ◽  
Vol 49 (01) ◽  
pp. 33-37
Author(s):  
S. B. Babar ◽  
◽  
K. S. Laddha

Study was undertaken with an objective to develop a simple method for isolation of ursolic acid from Nerium indicum Mill leaves and to prepare synthetic derivatives of ursolic acid. The leaves were defatted with petroleum ether and then extracted with methanol. Methanol extract was basified and subsequently acidified, followed by charcoal treatment to isolate ursolic acid. Synthetic derivatives were prepared from isolated ursolic acid by substitution at C-3 position. The structure of ursolic acid and its derivatives were confirmed by IR, MS, 1H NMR, 13C NMR studies.



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