Number | Date | Country | Kind |
---|---|---|---|
3840954 | Dec 1988 | DEX |
Number | Date | Country |
---|---|---|
2713316 | Oct 1977 | DEX |
80208 | Nov 1971 | DDX |
22161 | Mar 1901 | HUX |
33469 | Jan 1905 | HUX |
213760 | Dec 1983 | JPX |
144759 | Aug 1984 | JPX |
Entry |
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J. Org. Chem. 19, 1633, (1954), E. C. Taylor et al., Pyridine-1-Oxides, I. Synthesis of Some Nicotinc Acid Derivatives. |