Figure 3
The molecular structure of compound (II), with displacement ellipsoids drawn at the 30% probability level. Four independent molecules are present in the asymmetric unit, namely A (atoms N1/C2/N3/C4–C15/N13/O13A/O13B), B (N21/C22/N23/C24–C35/N33/O33A/O33B), C (N41/C42/N43/C44–C55/N53/O53A/O53B) and D (N61/C62/N63/C64–C75/N73/O73A/O73B). |