Table 2. Selected torsion angles (°) for inter­mediates (II) and (III).

Angle	(II)	(III)
N3—C4—N41—C42	−59.42 (19)	−59.7 (3)
N3—C4—N41—C47A	104.71 (15)	103.3 (2)
N41—C42—C71—C72	−34.0 (2)	−33.9 (3)
C5—C6—O61—C61	177.09 (17)	177.67 (17)