Author/Authors :
Sengoku، نويسنده , , Tetsuya and Satoh، نويسنده , , Yasutaka and Takahashi، نويسنده , , Masaki and Yoda، نويسنده , , Hidemi، نويسنده ,
Abstract :
Synthesis and structural confirmation of highly oxygenated pyrrolizidine alkaloids, hyacinthacines C2 [(1S,2R,3R,5R,7S,7aR)-3,5-hydroxymethyl-1,2,7-trihydroxypyrrolizidine], C3[(1S,2R,3R,5S,7R,7aR)-3,5-hydroxymethyl-1,2,7-trihydroxypyrrolizidine], and their C5-epimers were achieved on the basis of the highly divergent method employing (S)-(−)-2-pyrrolidone-5-carboxylic acid as the starting material.
