Table 3. Selected torsion angles (°) for products (IV)–(VI).
| (IV) | (V) | (V) | (VIa) | (VIa) | (VIb) | |
|---|---|---|---|---|---|---|
| Angle | x = nil | x = 1 | x = 2 | x = 1 | x = 2 | x = nil |
| φ1 | 136.6 (2) | 129.54 (18) | 130.72 (18) | 129.0 (2) | 130.7 (2) | 121.91 (18) |
| φ2 | −58.1 (3) | −68.6 (2) | −70.2 (2) | −69.3 (3) | −72.1 (3) | −62.7 (2) |
| φ3 | −15.6 (3) | −21.6 (3) | −25.7 (2) | −21.4 (3) | −26.0 (3) | −29.4 (3) |
| φ4 | 177.0 (2) | 171.48 (17) | 173.80 (18) | 171.8 (2) | 175.7 (2) | 145.43 (18) |
| φ5 | −4.3 (3) | −2.9 (3) | 3.8 (3) | −4.9 (4) | 0.4 (4) | −3.5 (3) |
| φ6 | −176.38 (18) | −174.4 (2) | 177.12 (17) | 179.8 (3) | 174.8 (2) | −177.71 (17) |
Notes: φ1 represents the torsion angle Nx3—Cx4—Nx41—Cx42; φ2 represents the torsion angles N3—C4—N41—C47A in (IV) and (VIb), and Cx4—Nx41—Nx41—Cx7A in (V) and (VIa) (see Figs. 3 ▸–6 ▸ ▸ ▸); φ3 represents the torsion angle Nx41—Cx42—Cx71—Cx72; φ4 represents the torsion angle Cx4—Cx5—Nx51—Cx57; φ5 represents the torsion angle Nx51—Cx57—Cx51—Cx52; φ6 represents the torsion angle Cx5—Cx6—Ox61—Cx61.