Medicinal Chemistry–II B.Pharmacy 5th Semester

Medicinal Chemistry–II notes for B.Pharmacy 5th semester cover cardiovascular, CNS, endocrine, and chemotherapeutic drugs with their classification, chemical structures, synthesis, mechanisms of action, SAR, metabolism, and therapeutic uses. These notes help pharmacy students understand drug design principles and the clinical relevance of medicinal chemistry in modern pharmaceutical practice.

Medicinal Chemistry–II notes

Medicinal Chemistry Overview

Bachelor of Pharmacy
Semester 5th SemesterSubjectMedicinal Chemistry–II
Syllabus
Unit 1stAntihistaminic agents:
Histamine, receptors and their distribution in the human body
H1-antagonists:
Diphenhydramine hydrochloride, Dimenhydrinate, Doxylamine succinate, Clemastine fumarate, Diphenylpyraline hydrochloride, Tripelennamine hydrochloride, Chlorcyclizine hydrochloride, Meclizine hydrochloride, Buclizine hydrochloride, Chlorpheniramine maleate, Triprolidine hydrochloride, Phenindamine tartrate, Promethazine hydrochloride, Trimeprazine tartrate, Cyproheptadine hydrochloride, Azatidine maleate, Astemizole, Loratadine, Cetirizine, Levocetirizine Cromolyn sodium
H2-antagonists:
cimetidine, famotidine, and ranitidine.
Gastric proton pump inhibitors:
Omeprazole, Lansoprazole, Rabeprazole, Pantoprazole
Antineoplastic agents:
Alkylating agents:
Meclorethamine*, Cyclophosphamide, Melphalan, Chlorambucil, Busulfan, Thiotepa
Antimetabolites:
Mercaptopurine, Thioguanine, Fluorouracil, Floxuridine, Cytarabine, Methotrexate, Azathioprine
Antibiotics:
Dactinomycin, daunorubicin, doxorubicin, and bleomycin
Plant products:
Etoposide, vinblastine sulphate, vincristine sulphate
Miscellaneous:
Cisplatin, Mitotane.
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Unit 2ndAnti-anginal:
Vasodilators:
Amyl nitrite, nitroglycerin, pentaerythritol tetranitrate, isosorbide dinitrite, dipyridamole.
Calcium channel blockers:
Verapamil, Bepridil hydrochloride, Diltiazem hydrochloride, nifedipine, amlodipine, felodipine, nicardipine, and nimodipine.
Diuretics:
Carbonic anhydrase inhibitors:
acetazolamide, methazolamide, and dichlorphenamide.
Thiazides: Chlorthiazide, Hydrochlorothiazide, Hydroflumethiazide, Cyclothiazide,
Loop diuretics: Furosemide,Bumetanide, Ethacrynicacid.
Potassium sparing Diuretics: Spironolactone, Triamterene, Amiloride.
Osmotic Diuretics: Mannitol

Anti-hypertensive Agents:
Timolol, Captopril, Lisinopril, Enalapril, Benazepril hydrochloride, Quinapril hydrochloride, Methyldopate hydrochloride, Clonidine hydrochloride, Guanethidine monosulphate, Guanabenz acetate, Sodium nitroprusside, Diazoxide, Minoxidil, Reserpine, Hydralazine hydrochloride.
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Unit 3rdAnti-arrhythmic Drugs:
Quinidine sulphate, Procainamide hydrochloride, Disopyramide phosphate, Phenytoin sodium, Lidocaine hydrochloride, Tocainide hydrochloride, Mexiletine hydrochloride, Lorcainide hydrochloride, Amiodarone,Sotalol.
Anti-hyperlipidaemic agents:
Clofibrate, Lovastatin, Cholesteramine and Cholestipol
Coagulants & Anticoagulants:
Menadione, Acetomenadione, Warfarin, Anisindione,clopidogrel
Drugs used in Congestive Heart Failure:
Digoxin, Digitoxin, Nesiritide, Bosentan,Tezosentan.
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Unit 4thDrugs acting on Endocrine system
Nomenclature, Stereochemistry and metabolism of steroids
Sex hormones:
Testosterone, Nandralone, Progestrones, Oestriol, Oestradiol, Oestrione, Diethylstilbestrol.
Drugs for erectile dysfunction: Sildenafil, Tadalafil.
Oral contraceptives: Mifepristone, Norgestril, Levonorgestrol
Corticosteroids: Cortisone, Hydrocortisone, Prednisolone, Betamethasone, Dexamethasone
Thyroid and antithyroid drugs: L-Thyroxine, L-Thyronine, Propylthiouracil, Methimazole.
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Unit 5thAntidiabetic agents:
Insulin
and its preparations
Sulfonylureas:
Tolbutamide, Chlorpropamide, Glipizide, Glimepiride.
Biguanides: Metformin.
Thiazolidinediones: Pioglitazone, Rosiglitazone. Meglitinides: Repaglinide, Nateglinide.
Glucosidase inhibitors: Acrabose, Voglibose.

Local Anaesthetics: SAR of Local Anaesthetics
Benzoic Acid derivatives;
Cocaine,Hexylcaine,Meprylcaine,Cyclomethycaine, Piperocaine.
AminoBenzoic acid derivatives:
Benzocaine, Butamben, Procaine, Butacaine, Propoxycaine, Tetracaine, Benoxinate.
Lidocaine/Anilide Derivatives:
Lignocaine, Mepivacaine, Prilocaine, Etidocaine.
Miscellaneous:
Phenacaine, Diperodon, Dibucaine.
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Unit Summary

Medicinal Chemistry–II focuses on the chemistry and pharmacological aspects of important therapeutic agents. It covers drugs acting on the cardiovascular system, central nervous system, endocrine system, and chemotherapeutic agents, including their classification, chemical structures, synthesis, mechanisms of action, SAR, metabolism, and clinical uses. The subject builds a strong foundation for understanding rational drug design and therapeutic applications.

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