Ciguatoxin synthesis method CTX1B and compounds useful for the synthesis of ciguatoxin CTX1B

摘要

A method for preparing CTX1B including further 10 processes ** ** Formula double bond of compound A ** ** Formula 10 is oxidized with osmium osmino and becomes a diol derivative of compound A, is transformed diol-aldehyde by oxidation with sodium periodate cleavage, after the aldehyde to alcohol is reduced using sodium borohydride and compuessto 1 (process 1) is obtained, ** ** Formula alcohol of compound 1 is converted into compound 2 using diphenylsulfide · tributylphosphine (process 2), ** ** said compound Formula 2 is transformed into α-chlorsulfuron using N-chlorosuccinimide and elc compound B is synthesized. ** ** Formula