Number | Date | Country | Kind |
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3-274008 | Oct 1991 | JPX |
Number | Name | Date | Kind |
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4739084 | Takaya et al. | Apr 1988 | |
4739085 | Takaya et al. | Apr 1988 | |
4994590 | Takaya et al. | Feb 1991 | |
5012002 | Kumobayashi et al. | Apr 1991 | |
5144050 | Chan et al. | Sep 1992 |
Number | Date | Country |
---|---|---|
55-61937 | Oct 1980 | JPX |
Entry |
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J. Org. Chem., 1988; 53, 4081-4084. |