3-(2-trialkylsilyloxy)ethyl-7-ethyl-1H-indoles and method for their preparation
Patent 5599946 Issued on February 4, 1997. Estimated Expiration Date: May 30, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
The present invention relates to novel trialkylsilyloxy derivatives of 7-ethyltryptophol useful in the preparation of etodolac, and methods of making them, and methods of using them to prepare etodolac.
P. Rib ereau-Gayon et al., "Rural Economy.--Simultaneous analysis of organic acids, polyalchohols, and sugars in wine. Applications.", C. R. Acad. Sc. Paris, t. 273, Sries D-1761, 8 Nov. 1971, 2 pages (together with English translation