This is a divisional of copending application Ser. No. 7/118,573 filed on Nov. 9, 1987 now U.S. Pat. No. 4,879,008.
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Gilman, H., ed., Organic Chemistry: An Advanced Treatise, vol. 1, 2nd ed., John Wiley and Sons, Inc., New York, N.Y. @ 1943, pp. 562-563. |
Number | Date | Country | |
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Parent | 118573 | Nov 1987 |