冈田(软海绵)酸

(2S,5R)-5-[(2S,5R,6R,8S)-5-Benzyloxy-8-((R)-2-hydroxy-1-methyl-ethyl)-10-methyl-1,7-dioxa-spiro[5.5]undec-10-en-2-ylmethyl]-2-tert-butyl-5-methyl-[1,3]dioxolan-4-one

{(2S,5R,6S,8S)-5-Benzyloxy-8-[(R)-2-(4-methoxy-benzyloxy)-1-methyl-ethyl]-10-methyl-1,7-dioxa-spiro[5.5]undec-10-en-2-ylmethoxy}-tert-butyl-diphenyl-silane

(2S,6R,8S)-8-[(R)-2-(4-Methoxy-benzyloxy)-1-methyl-ethyl]-10-methyl-1,7-dioxa-spiro[5.5]undec-10-ene-2-carbaldehyde

(2S,5R)-2-tert-Butyl-5-(hydroxy-{(2S,6R,8S)-8-[(R)-2-(4-methoxy-benzyloxy)-1-methyl-ethyl]-10-methyl-1,7-dioxa-spiro[5.5]undec-10-en-2-yl}-methyl)-5-methyl-[1,3]dioxolan-4-one