16958-11-5 4-((1,1-Dioxido-1-benzothien-3(2H)-ylidene)methyl)morpholine AIDS-125728 AIDS125728 Morpholine, {4-(benzo[b]thien-3(2H)-ylidenemethyl)-,} S,S-dioxide Morpholine, {4-[(2,} {3-dihydrobenzo[b]thien-3-ylidene)methyl]-,} S,S-dioxide NSC82169