00511nam a2200169Ia 450000500170000000800410001703500090005804100080006708200100007510000230008524500270010826000380013530000080017350501030018165000330028470000240031720260808125316.0260808s9999||||xx |||||||||||||| ||und||  a1563  aENG  a547.7  aKatritzky, Alan R. 0aHeterocyclic chemistry  aLondonbMathuen and Companyc1960  a274  aHeterocyclic chemistry, Organic chemistry, Aromatic compounds, Ring compounds, Medicinal chemistry  aChemistrybOrganic chemistry  aLagowski, Jeanne M.