John (Consultant Editor, Dictionary of Natural Products, London, UK) Buckingham & Fiona (CRC Press, Boca Raton, Florida, USA) Macdonald 
Dictionary Organic Compounds, Sixth Edition, Supplement 2 [PDF ebook] 

This book includes over 2, 500 entries of organic compounds, some of which cover recently synthesized molecules of research interest, while others refer to known compounds which have come into prominence. It is an invaluable resource for Organic and Pharmaceutical chemists.