tumor-promoting esters of the diterpene phorbol ( phorbol 12-myristate 13-acetate , beta-phorbol 12,13-dibutyrate , and beta-phorbol 12,13-didecanoate ) , indole alkaloids ( teleocidin and lyngbyatoxin a ) , and polyacetates ( aplysiatoxin and debromoaplysiatoxin ) all inhibited egf-stimulated phosphorylation of the receptor .
C0031586
esters
C0039654
phorbol