Pregn-4-ene-3,20-dione, 21--(acetyloxy)-11,17-dihydroxy-, (11beta)-, mixt. with O-2,6-diamino-2,6-dideoxy-alpha-D-glucopyranosyl-(1-4)-O-(O-2,6-diamino-2,6-dideoxy-beta-L-idopyranosyl-(1-3)-beta-D-ribofuranosyl-(1-5))-2-deoxy-D-streptamine