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SUNSCREEN & SUNSCREEN AGENTS : A REVIEW

About Authors:
*M.C.Sai HariKishan, C.P.Meher, S.M.Ahmed

Maheshwara Institute Of Pharmacy, Chitkul, Isnapur ,
Patancheru, Hyderabad-502307
*hari_mc@yahoo.com

ABSTRACT:
Sunscreen agents are used to prevent sunburn. Limiting the exposure to the sun and using sunscreen agents when in the sun may help prevent early wrinkling of the skin and skin cancer. There are two kinds of sunscreen agents: chemical and physical. Chemical sunscreen agents protect from the sun by absorbing the ultraviolet (UV) and visible sun rays, while physical sunscreen agents reflect, scatter, absorb, or block these rays.  Sunscreen agents often contain more than one ingredient. For example, products may contain one ingredient that provides protection against the ultraviolet A (UVA) sun rays and another ingredient that protects  from the ultraviolet B (UVB) sun rays, which are more likely to cause sunburn than the UVA sun rays. Ideally, coverage should include protection against both UVA and UVB sun rays.  The sun protection factor (SPF) that  find on the label of these products tells  the minimum amount of UVB sunlight that is needed with that product to produce redness on sunscreen-protected skin as compared with unprotected skin. Sunscreen products with high SPFs will provide more protection against the sun.The presented review article is concern with discussion on the sunscreen agents.


REVIEW ON ASYMMETERIC CATALYTIC HYDROGENATION

About Author:
Sarabjeet Kaur
M.pharm Lord Shiva College of pharmacy Sirsa
Teaching Assistant Dept of Pharm. Edu. and research, Bhainswal Kalan
BPSMV, Sonipat
jassarab@gmail.com

ABSTRACT:
Asymmetric hydrogenation is by far the most attractive form of stereoselective synthesis. Using optically pure catalysts, prochiral substrates can be converted to chiral compounds with high selectivity. These catalysts can be completely organic in nature (for example proline 50) or contain a transition metal which coordinates to an organic chiral ligand. In the last decades, considerable progress has been made in the development of metal catalyzed asymmetric transformation based on enantiopure ligands complexed to a transition metal core. However, the identification of suitable asymmetric catalysts still poses one of the most challenging endeavours in contemptory chemistry.


A REVIEW ON SUBSTITUTED BENZOTHIAZOLES

About Authors:
Swathi.Pathi*, Swarna Latha.D, M.Sreenivasulu.
Department of Pharmaceutical Chemistry,
Annamcharya college of pharmacy, newboyana pally, rajampet(M),
kadapa(dt). Andhara Pradesh, India.
*swathi.janu3@gmail.com

1. INTRODUCTION
A heterocyclic compound is one which possesses a cyclic structure with at least two different kinds of hetero atoms in the ring. Heterocyclic compounds are very widely distributed in nature and are essential to life in various ways1.
The chemistry and biological study of heterocyclic compounds has been an interesting field for a long time in medicinal chemistry. A number of heterocyclic derivatives containing nitrogen and sulphur atom serve as a unique and versatile scaffolds for experimental drug design2.
Benzothiazole is one of the most important heterocyclic compound, weak base, having varied biological activities and still of great scientific interest now a days. They are widely found in bioorganic and medicinal chemistry with application in drug discovery.


SYNTHESIS AND PHARMACOLOGICAL EVALUATION OF SOME CALCIUM CHANNEL BLOCKER THIOSALICYLAMIDE DERIVATIVES AS ANTIHYPERTENSIVE AGENTS

About Author:
ABHISHAK SINGH PARMAR,
M.PHARMACY (MEDICINAL AND PHARMACEUTICAL CHEMISTRY),
B.R.NAHATA COLLEGE OF PHARMACY,
MANDSAUR (M.P).
*abhishakparmar@gmail.com

1. INTRODUCTION
1.1 Medicinal and Pharmaceutical chemistry

It is a discipline at the intersection of chemistry and pharmacology involved with designing, synthesizing and developing pharmaceutical drugs. Medicinal chemistry involves the identification, synthesis and development of new chemical entities suitable for therapeutic use. It also includes the study of existing drugs, their biological properties, and their quantitative structure-activity relationships (QSAR). Pharmaceutical chemistry is focused on quality aspects of medicines and aims to assure fitness for the purpose of medicinal products. Compounds used as medicines are overwhelmingly organic compounds including small organic molecules and biopolymers. However, inorganic compounds and metal-containing compounds have been found to be useful as drugs. For example, the cis-platin series of platinum-containing complexes have found use as anti-cancer agents.1


SYNTHESIS AND ANTIMICROBIAL ACTIVITY OF SOME NOVEL THIAZOLO[3,2-a]PYRIMIDINES

About Authors:
Shaishavi Parikh*, Arun Parikh, Vijayalakshmi Gudaparthy
Department of pharmaceutical chemistry, L. J. Institute of Pharmacy,
Ahmedabad-382210, India.
*shaishavi21@rediffmail.com

Abstract
Thiazolo[3,2-a]pyrimidine were synthesized by the reaction of the indole aldehyde with thiourea and methyl isobuterylacetate to generate thioxo pyrimidine compound which condensed to phenacyl bromide to form thiazolo[3,2-a]pyrimidine. All synthesized compounds are characterized by the IR, Mass and NMR spectroscopy and evaluated for the antibacterial and anti fungal activity by using B. cereus, S. aureus strains of Gram positiveE. coli strain of Gram negative andC.albicans strain of fungus. The compound having nitro and methoxy substituent shows significant activity in thiazolo[3,2-a]pyrimidine derivatives.


A MAJOR APPROACH- 2-CHLOROPYRIDINE-5-TRIFLUOROMETHYL DERIVATIVE AS ANTIAMNESIC AGENTS

About Author:
Ravindra Singh Tomar
M.Pharm (Medicinal & Pharmaceutical Chemistry),
B R Nahta College of Pharmacy, Mandsaur (M.P)
ravindratomar16@gmail.com

ABSTRACT-
Here a scheme has been designed for synthesis of 2-chloropyridine-5-trifluoromethyl derivatives. The probability of being antiamnesic agent has been checked by pass prediction. All compound shows antiamnesic activity as result of pass prediction. By Lipinski rule of five all compounds shows drug like activity. Also a method for pharmacological evaluation & Biochemical evaluation is described under. All synthetic procedure has been designed & described under-


SYNTHESIS AND BIOLOGICAL EVALUATION OF SOME NOVEL 3-(2-(1H-INDOL-2-YL) PHENYL)-2-ARYLIMIDAZO[4,5-b]INDOLES

About Authors:
Aditya Dixit1, Gyanendra Kumar Sharma2, Devender Pathak*3
1M. Pharmacy (Pharmaceutical Chemistry)
2Associate Professor (Pharmaceutical chemistry)
3Director, Professor and Head of the Dept. (Pharmaceutical Chemistry)
Rajiv Academy for Pharmacy, Mathura,
Delhi-Mathura Highway, Chhattikara, 281006, India
dev_15@rediffmail.com*, adixit70@gmail.com

ABSTRACT
A traditional but effective method of developing new targets is lead molecule modification, where an existing popular drug from the market is taken as a lead and similar derivatives are synthesized. With the advent of modern techniques conventional methods have lost their gleam but, reactions are still best understood when performed by the conventional techniques. One such endeavor has been made here where indole has been used as a parent moiety and by adding some functional groups some novel indole derivatives were synthesized and screened for their in vitro antitubercular, and anticancer activity. This synthesis of some fresh indole derivatives was done by using various benzaldehyde derivatives and 2-(o-Aminophenyl)indole in acidic condition then with ammonium acetate and isatin in presence of glacial acetic acid.. The structures of newly synthesized compounds were characterized by IR, 1H NMR, MASS and elemental analysis.Compounds 3h & 3i showed good antitubercular activity and 3d, 3e & 3g showed good anticancer compared to the standard drug.



FOOD CONTAMINANTS: BANGLADESH PERSPECTIVE

About Authors:
Zubair Khalid Labu1; AK Mohiuddin1; M.A Bake*2
1Department of Pharmacy, World University of Bangladesh (WUB), Dhaka-1215, Bangladesh
*2Product Development officer, Gonoshasthaya Pharmaceuticals Ltd., Mirzanagar, Savar, Dhaka-1344.
zubairlabu@yahoo.com; *abdul.bake@yahoo.com

Abstract
Food is the major source of energy in humans as well as animals. Foods are materials taken into the body by different route which provide nourishment in the form of energy or in the building of tissues. Food contaminants are substances that make food unfit for human consumption. Examples include bacteria, toxic chemicals, carcinogens, teratogens and radioactive materials. The purpose of these studies is to find out the food contaminants which are used in different purposes available in Bangladesh and contaminants detection method. After survey we found that Dhaka is the main city where food contamination by various contaminants in higher percentage. This contamination done by manmade, industrial discharge, poisonous water etc. Government of Bangladesh taking various necessary steps to stop this contamination.


REVIEW OF A REAL VERSATILE MOLECULE

About Authors:
C.P.Meher
Asst. Professor
Maheshwara Institute of  Pharmacy,
Chitkul, Patancheru, Medak, A.P
chaitanyameher84@gmail.com

ABSTRACT
Pyrazole, a 5-membered heterocyclic diazole alkaloid composed of three carbon atoms and two nitrogen atoms in adjacent positions, is a prevalent scaffold in drug discovery programs. The aim of this review is to provide an overview of diverse pharmacological activities of pyrazole moiety.This review highlighted recent reports of antimicrobial, anticancer, ACE inhibitory, antiviral as well as anti-inflammatory activities of pyrazole. The purpose of this review was to collate literature work reported by researchers on pyrazole for their varoius pharmacological activities and also reported recent efforts made on this moiety.


CONDENCED HETEROCYCLIC SYSTEM - QUINOLINE WITH THEIR NUMEROUS BIOLOGICAL ACTIVITY

About Authors:
C.P.Meher*, D.V.Charan, S.P.Sethy
Asst. Professor
Maheshwara Institute of  Pharmacy,
Chitkul, Patancheru, Medak, A.P
*chaitanyameher84@gmail.com

ABSTRACT
Heterocyclic chemistry is the branch of chemistry dealing with structure,synthesis, properties, and applications of heterocycles. heterocyclic compounds may be inorganic, most contain at least one carbon. Since in organic chemistry non-carbons usually are considered to replace carbon atoms, they are called heteroatoms, meaning 'different from carbon and hydrogen' (rings of heteroatoms of the same element are homocyclic). The IUPAC recommends the Hantzsch-Widman nomenclature for naming heterocyclic compounds.The present review article is based on the condenced heterocyclic system quinoline derivatives with their tremendous pharmacological activities.


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