Prof.Nakanishi Koji Koji Nakanghiwas bom in 1925 in Hong years with LF.Fieser at Harvard,he eceived his PhD in 1954 from Nagoya moved to Columbia niversity,where he is currently Centennial Professor of chemistry. rmining the structure of the Comprehensive Natural Products Chemistry 1998 Azadirachtin sees first total synthesis 10 August 2007 A complex natural product has finally succumbed to its first total synthesis after 22 years of attempts by eminent organic chemists. 22 11 11 21 Prof. Nakanishi Koji Comprehensive Natural Products Chemistry 1998 22 Azadirachtin sees first total synthesis 10 August 2007 A complex natural product has finally succumbed to its first total synthesis after 22 years of attempts by eminent organic chemists