Number | Date | Country | Kind |
---|---|---|---|
4018260 | Jun 1990 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4753947 | Dorn et al. | Jun 1988 | |
4766132 | Kay | Aug 1988 | |
4933339 | Sharma | Jun 1990 | |
4999357 | Gadras et al. | Mar 1991 |
Entry |
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J. Org. Chem., vol. 43, No. 17, 1978, pp. 3396-3398. |