12-O-,13-,20-O-Triacetyl(4-deoxy-4-alpha-phorbol 5H-Cyclopropa[3,4]benz[1,2-e]azulen-5-one, 9,9a-bis(acetyloxy)-3-[(acetyloxy)methyl]-1,1a,1b,4,4a,7a,7b,8,9,9a-decahydro-7b-hydroxy-1,1,6,8-tetramethyl-, (1aR,1bS,4aR,7aR,7bR,8R,9R,9aS)- AIDS-161756 AIDS161756