Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5321140 | Pyridinecarboxaldehyde D-ring intermediates useful for the synthesis of camptothecin and camptothecin analogs | Daniel L. Comins | 1994-06-14 |
| 5315007 | Process for making DE ring intermediates for the synthesis of camptothecin and camptothecin analogs | Daniel L. Comins | 1994-05-24 |