76045-30-2Relevant articles and documents
Synthesis of the thiazoline-based siderophore (S)-desferrithiocin
Mulqueen, Gerard C.,Pattenden, Gerald,Whiting, Donald A.
, p. 5359 - 5364 (1993)
A total synthesis of the new thiazoline-based siderophore desferrithiocin 1, isolated from Streptomyces antibioticus, is described. Thus, a concise synthesis of (5)-2-methylcysteine hydrochloride 11 is first developed based on a modification of Seebach's "self-reproduction of chirality" protocol using the thiazolidine intermediate 8 derived from (S)-cysteine and pivaldehyde as a key intermediate. When a solution of (S)-2-methylcysteine hydrochloride is heated with 2-cyano-3-hydroxypyridine in the presence of triethylamine, (S)-desferrithiocin is produced in 97% yield. In a similar manner, use of (R)-2-methylcysteine in a cyclocondensation with 2-cyano-3-hydroxypyridine led to (R)-desferrithiocin, in a similar yield.
