Structure Elucidation During all of the 19th century and most of the early half of the 20th century,the assignment of absolute or relative configuration was,of course, essentially out of the question in most cases. Needless to say,this intellectually difficult and physically tedious approach had its limitations,and was often attended with errors. Examples of Structure Elucidation 118 Years 952 Total Syn By Gat 高怡生 Syn.In 1954 广方 9 9 17 Structure Elucidation Structure Elucidation During all of the 19th century and most of the early half of the 20th century, the assignment of absolute or relative configuration was, of course, essentially out of the question in most cases. Needless to say, this intellectually difficult and physically tedious approach had its limitations, and was often attended with errors. 18 Examples of Structure Elucidation O HO NCH3 H HO H N O H H H H O H N Morphine 118 Years! Strychnine 127 Years! Robert Robinson published 54 paper for structure elucidation And determined it in 1946 and got Nobel Prize in 1947. Robert B. Woodward Total Syn. In 1954. Robert Robinson 1925 (1886-1975) 1952 Total Syn By Gates 高怡生 曾广方