.alpha.-D-Glucopyranoside, phenylmethyl 2-acetylamino-2-deoxy- 3-O-[[2-[[2-[1-(aminocarbonyl)-4-[[5-[(1-nitro- 9-acridinyl)amino]pentyl]amino]-4-oxobutyl]amino]- 1-methyl-2-oxoethyl]amino]-1-methyl-2-oxoethyl]- Glutamamide, N-acetyl-1-O-(phenylmethyl)-.alpha.-muramoyl- alanyl-N(5)-[5-[(1-nitro-9-acridinyl)amino]pentyl]-,stereoisomer NSC683692