Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5315007 | Process for making DE ring intermediates for the synthesis of camptothecin and camptothecin analogs | Daniel L. Comins | 1994-05-24 |
| 5264579 | D ring intermediates for the synthesis of camptothecin and camptothecin analogs | Daniel L. Comins | 1993-11-23 |
| 5258516 | Optically pure D,E ring intermediates useful for the synthesis of camptothecin and camptothecin analogs | Daniel L. Comins | 1993-11-02 |
| 5254690 | Alkoxymethylpyridine d-ring intermediates useful for the synthesis of camptpthecin and camptothecin analogs | Daniel L. Comins | 1993-10-19 |
| 5247089 | Method of making intermediates useful for the manufacture of camptothecin and camptothecin analogs | Daniel L. Comins | 1993-09-21 |
| 5243050 | Alkylpyridone DE ring intermediates useful for the manufacture of camptothecin and camptothecin analogs | Daniel L. Comins | 1993-09-07 |
| 5212317 | Methods and intermediates for the assymmetric synthesis of camptothecin and camptothecin analogs | Daniel L. Comins | 1993-05-18 |
| 5200524 | Camptothecin intermediates and method of making same | Daniel L. Comins | 1993-04-06 |
| 5191082 | Camptothecin intermediate and method of making camptothecin intermediates | Daniel L. Comins | 1993-03-02 |
| 5162532 | Intermediates and method of making camptothecin and camptothecin analogs | Daniel L. Comins | 1992-11-10 |