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Volume 76
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Article

Anticonvulsant and Sedative-Hypnotic Activities of N-Acetyl / Methyl Isatin Derivatives

by
Sivakumar SMITHA
1,*,
Surendra N. PANDEYA
2,
James P. STABLES
3 and
Suthakar GANAPATHY
4
1
Department of Pharmaceutical Analysis, C.L.Baid Metha College of Pharmacy, Rajiv Gandhi Salai, Thorapakkam, Chennai 600 096, India
2
Department of Pharmacy, Saroj Institute of Technology and Management, Arjunganj, Lucknow, 226 002, India
3
National Institute of Neurological Disorders and Stroke, NIH, Maryland, 20892-9020, USA
4
Department of Pathology, University of Texas Health Science Center at San Antonio, 7703, Floyd Curl Drive, San Antonio, Texas-78229, USA
*
Author to whom correspondence should be addressed.
Sci. Pharm. 2008, 76(4), 621-636; https://doi.org/10.3797/scipharm.0806-14
Submission received: 30 June 2008 / Accepted: 14 September 2008 / Published: 17 September 2008
Versions Notes

Abstract

A series of N-methyl/acetyl 5-(un)-substituted isatin-3-semicarbazones were screened for anticonvulsant and sedative-hypnotic activities. The results revealed that protection was obtained in all the screens i.e., Maximal electroshock, (MES) subcutaneous pentylene tetrazole (scPTZ) and subcutaneous strychnine (scSTY) screens. Three compounds (2a,2e and 2i) possessed anti-MES activity and all the compounds were less neurotoxic than phenytoin, carbamazepine and phenobarbital. All the compounds were completely non-toxic at 4h when compared to phenytoin, carbamazepine and phenobarbital, which were toxic at 100 and 300 mg/kg respectively. Compounds 2a, 2b, 2e, 2g and 2i emerged as the active compounds in oral MES screen. Selected compounds were evaluated for quantification studies in MES, scPTZ and neurotoxicity screens after i. p (2b, 2i) and oral administration (2a, 2g) in rats. Among all the compounds 2a, 2b and 2g emerged as broad-spectrum compounds as indicated by their protection in MES, scSTY and scPTZ screens. All the compounds except compound 2b showed significant sedative-hypnotic activity.
Keywords: Isatin-3-semicarbazones; Anticonvulsant; Maximal electroshock; Sedative-hypnotic Isatin-3-semicarbazones; Anticonvulsant; Maximal electroshock; Sedative-hypnotic

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MDPI and ACS Style

SMITHA, S.; PANDEYA, S.N.; STABLES, J.P.; GANAPATHY, S. Anticonvulsant and Sedative-Hypnotic Activities of N-Acetyl / Methyl Isatin Derivatives. Sci. Pharm. 2008, 76, 621-636. https://doi.org/10.3797/scipharm.0806-14

AMA Style

SMITHA S, PANDEYA SN, STABLES JP, GANAPATHY S. Anticonvulsant and Sedative-Hypnotic Activities of N-Acetyl / Methyl Isatin Derivatives. Scientia Pharmaceutica. 2008; 76(4):621-636. https://doi.org/10.3797/scipharm.0806-14

Chicago/Turabian Style

SMITHA, Sivakumar, Surendra N. PANDEYA, James P. STABLES, and Suthakar GANAPATHY. 2008. "Anticonvulsant and Sedative-Hypnotic Activities of N-Acetyl / Methyl Isatin Derivatives" Scientia Pharmaceutica 76, no. 4: 621-636. https://doi.org/10.3797/scipharm.0806-14

APA Style

SMITHA, S., PANDEYA, S. N., STABLES, J. P., & GANAPATHY, S. (2008). Anticonvulsant and Sedative-Hypnotic Activities of N-Acetyl / Methyl Isatin Derivatives. Scientia Pharmaceutica, 76(4), 621-636. https://doi.org/10.3797/scipharm.0806-14

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