IHB pattern, the relative energy of conformer 1-i is 4.3222 kcal/mol higher than the
relative energy of the conformer with the same IHB pattern and most favourable
mutual orientation of the moieties (1-a). While many different orientations of the
1
2
3
4
5
6
7
8
9
10
11
Fig. 2 Intramolecular hydrogen bond patterns in the conformers of muchimangin B. The
intramolecular hydrogen bonds are denoted by dotted segments. The conformer/s in which each
pattern is present are indicated under each image. The H atoms attached to C atoms are not shown,
to increase the readability of the images
96
L. Mammino et al.
relative energy of the conformer with the same IHB pattern and most favourable
mutual orientation of the moieties (1-a). While many different orientations of the
1
2
3
4
5
6
7
8
9
10
11
Fig. 2 Intramolecular hydrogen bond patterns in the conformers of muchimangin B. The
intramolecular hydrogen bonds are denoted by dotted segments. The conformer/s in which each
pattern is present are indicated under each image. The H atoms attached to C atoms are not shown,
to increase the readability of the images
96
L. Mammino et al.