5-fluoro-6-methoxy-4H-benzo[1,4]oxazin-3-one

3-methoxy-5-methyl-5H-benzo[b]pyridazino[4,3-e][1,4]thiazine

1-methoxy-2-sec-butyldiazene 2-oxide

N-isobuthoxy-N-ethoxy-N-methoxyamine-(15)N