In this chapter, brief discovery of certain antibiotics, their mode of action,
their inactivity have been discussed in basic level. With the importance in present era,
modern technologies at very preliminary level have discussed for the synthesis of
some microbial product like Penicillin, Cephalosporin, Chloromycetin, Streptomycin
etc. Their natural and commercial production process and development described in
a simple way.
Keywords: Drug discovery, Pharmaceuticals, Pharmaceutical chemistry, Pharmacology, Pharmacokinetics.