RISTOMYCIN A AGLYCONE, 41-[[4-([1,1'-BIPHENYL]-4-YLMETHYL)-1-PIPERAZINYL]METHYL]- 56-O-[2-[[(4-BUTOXYPHENYL)METHYL]AMINO]-N-[3-(DIMETHYLAMINO)PROPYL]-SSD-GLUCOPYRANURONAMIDOSYL]-5,31-DICHLORO-38-DE(METHOXYCARBONYL)-7-DEMETHYL-19-DEOXY-38-[[[3-(DIMETHYLAMI