Synonyms: 32H-29,5,9-(Epoxyethanylylidyne)-1,30-methano-14H,16H-dibenzo[h,o]dibenzo[7,8:9,10][1,5]dioxacycloundecino[3,2-b][1,6]dioxacycloheptadecin-14,18,27,32,35-pentone,15a,28a,29,30-tetrahydro-2,3,4,6,7,8,10,11,12,20,21,22,23,24,25,33-hexadecahydroxy-,stereoisomer; NSC 297812; Stereoisomer of15a,28a,29,30-tetrahydro-2,3,4,6,7,8,10,11,12,20,21,22,23,24,25,33-hexadecahydroxy-32H-29,5,9-(epoxyethanylylidyne)-1,30-methano-14H,16H-dibenzo[h,o]dibenzo[7,8:9,10][1,5]dioxacycloundecino[3,2-b][1,6]dioxacycloheptadecin-14,18,27,32,35-pentone