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| Number | Title | Issue Date |
| 4442292 | Optically active nicotine analogs and process for their preparation This invention provides a process for the preparation of cotinine and nicotine analogs containing substituents on pyrrolidinone/pyrrolidine ring at the 3' position of cotinine and at the 4' and 5' position of nicotine. The process proceeds via a first step pre... | 04/10/1984 |
