Methyl group (-CH?)

Synthesis Oxidation Functionalization Cytotoxic Yield NMR spectroscopy Selectivity Antimicrobial activity Steric hindrance Mass spectrometry (MS) Reagent Pyrrole Conformation Chemoselective Alkaloid Intramolecular Intermediate X-ray crystallography In vitro Testing Antitumor Activity Structure-Activity Relationship (SAR) Antiviral Activity Conformational Restriction Bioavailability Reaction Optimization Cytotoxicity Assay Functional Group Tolerance Nucleoside Analogues Metabolic Stability Heterocyclic compound Formal total synthesis Quinoline Marine alkaloid Chromatography (HPLC, TLC) IC?? (Half-maximal inhibitory concentration) Hydroxyl group (-OH) LogP (Partition coefficient) Methoxy group (-OCH?)