The Structure and Synthesis of Sudachiin A, a New Flavone Glucoside from Citrus Sudachi

Article abstract of DOI:10.1246/bcsj.55.2928

Sudachiin A was isolated from the green peels of Citrus sudachi Hort. ex Shirai.This structure was deduced to be sudachitin 4'-β-D-glucoside by means of its spectra and degradation; this was confirmed by the synthesis of the one from sudachitin 7-benzyl ether and α-acetobromoglucose via several steps. 4',5,7-Trihydroxy-3',6,8-trimethoxyflavone 7-glucoside (sudachitin 7-β-D-glucoside), which was isolated from Sideritis leucantha Cavanilles, was also synthesized from sudachitin and α-acetobromoglucose in a similar manner.