l-Proline, 5-oxo-, compd. with (4S-(4alpha,4aalpha,5alpha,5aalpha,6alpha,12aalpha))-4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxa
l-Proline, 5-oxo-, compd. with (4S-(4alpha,4aalpha,5alpha,5aalpha,6alpha,12aalpha))-4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxa