Synonyms: Bryostatin1, 7-O-deacetyl-20-de[(1-oxo-2,4-octadienyl)oxy]-7-O-(1-oxobutyl)-;18,27,28,29-Tetraoxatetracyclo[21.3.1.13,7.111,15]nonacosane, bryostatin 1deriv.; Bryostatin 13; Butanoic acid,1,11,21-trihydroxy-17-(1-hydroxyethyl)-5,13-bis(2-methoxy-2-oxoethylidene)-10,10,26,26-tetramethyl-19-oxo-18,27,28,29-tetraoxatetracyclo[21.3.1.13,7.111,15]nonacos-8-en-25-ylester, [1S-[1R*,3R*,5Z,7S*,8E,11S*,13E,15R*,17S*(S*),21S*,23S*,25R*]]-