Table 3. Local Correlation Time at Various Carbon Nuclei Sites of Prednisone, Prednisolone, Prednisolone Acetate, Methyl Prednisolone, and Methyl Prednisolone Acetate.
| prednisone |
prednisolone |
prednisolone
acetate |
methyl
prednisolone |
methyl
prednisolone acetate |
|||||
|---|---|---|---|---|---|---|---|---|---|
| carbon nuclei | local correlation time (s) | carbon nuclei | local correlation time (s) | carbon nuclei | local correlation time (s) | carbon nuclei | local correlation time (s) | carbon nuclei | local correlation time (s) |
| C20 | 9.5 × 10–4 | C20 | 5.3 × 10–4 | C20 | 4.3 × 10–4 | C20 | 3.9 × 10–4 | C20 | 2.6 × 10–4 |
| C3 | 1.3 × 10–3 | C3 | 8.9 × 10–4 | C3 | 7.4 × 10–4 | C3 | 1.0 × 10–3 | C3 | 4.1 × 10–4 |
| C5 | 1.2 × 10–3 | C5 | 9.3 × 10–4 | C5 | 6.2 × 10–4 | C5 | 2.7 × 10–4 | C5 | 2.5 × 10–4 |
| C1 | 1.3 × 10–3 | C1 | 8.6 × 10–4 | C1 | 6.9 × 10–4 | C1 | 6.2 × 10–4 | C22 | 1.7 × 10–4 |
| C2 | 6.5 × 10–4 | C2 | 4.8 × 10–4 | C2 | 3.9 × 10–4 | C2 | 2.8 × 10–4 | C1 | 5.5 × 10–4 |
| C4 | 6.3 × 10–4 | C4 | 3.5 × 10–4 | C4 | 2.5 × 10–4 | C4 | 1.1 × 10–4 | C2 | 3.4 × 10–4 |
| C17 | 2.9 × 10–6 | C17 | 3.8 × 10–6 | C17 | 9.1 × 10–7 | C17 | 1.4 × 10–6 | C4 | 1.1 × 10–4 |
| C11 | 9.5 × 10–4 | C11 | 4.5 × 10–5 | C11 | 4.4 × 10–5 | C11 | 2.4 × 10–5 | C17 | 9.9 × 10–7 |
| C21 | 8.8 × 10–5 | C21 | 4.5 × 10–5 | C21 | 3.7 × 10–5 | C21 | 3.3 × 10–5 | C11 | 1.8 × 10–5 |
| C9 | 1.7 × 10–5 | C9 | 5.8 × 10–6 | C9 | 4.2 × 10–6 | C9 | 2.2 × 10–6 | C21 | 1.7 × 10–5 |
| C14 | 2.2 × 10–5 | C14 | 2.8 × 10–5 | C14 | 1.4 × 10–5 | C14 | 8.1 × 10–6 | C9 | 3.6 × 10–6 |
| C13 | 2.2 × 10–5 | C13 | 1.0 × 10–5 | C13 | 3.6 × 10–6 | C13 | 3.1 × 10–6 | C14 | 1.0 × 10–5 |
| C10 | 2.0 × 10–5 | C10 | 1.5 × 10–5 | C10 | 1.0 × 10–5 | C10 | 1.5 × 10–5 | C13 | 3.2 × 10–6 |
| C12 | 7.4 × 10–6 | C12 | 1.5 × 10–6 | C12 | 1.3 × 10–6 | C12 | 1.0 × 10–5 | C10 | 6.9 × 10–6 |
| C7 | 7.4 × 10–6 | C7 | 7.9 × 10–6 | C7 | 2.4 × 10–6 | C7 | 1.2 × 10–6 | C12 | 1.0 × 10–6 |
| C16 | 2.6 × 10–5 | C16 | 3.3 × 10–6 | C16 | 7.6 × 10–6 | C16 | 1.3 × 10–5 | C7 | 1.2 × 10–7 |
| C6 | 6.8 × 10–6 | C6 | 2.6 × 10–5 | C6 | 5.8 × 10–6 | C6 | 3.7 × 10–7 | C16 | 4.2 × 10–6 |
| C8 | 6.8 × 10–6 | C8 | 4.7 × 10–6 | C8 | 4.0 × 10–6 | C8 | 2.2 × 10–6 | C6 | 2.8 × 10–6 |
| C15 | 2.4 × 10–5 | C15 | 1.0 × 10–5 | C15 | 1.4 × 10–5 | C15 | 9.6 × 10–6 | C8 | 8.4 × 10–6 |
| C18, C19 | 1.3 × 10–7 | C18, C19 | 7.8 × 10–8 | C18, C19 | 6.5 × 10–7 | C19 | 1.2 × 10–7 | C15 | 5.2 × 10–6 |
| C23 | 1.7 × 10–7 | C18 | 2.3 × 10–7 | C24 | 8.5 × 10–7 | ||||
| C22 | 3.3 × 10–4 | C22 | 1.3 × 10–7 | C18, C19 | 2.5 × 10–7 | ||||
| C23 | 4.4 × 10–7 | ||||||||