Number | Date | Country | Kind |
---|---|---|---|
60-198746 | Sep 1985 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2777780 | Cormac et al. | Jan 1957 | |
3640928 | Murayama | Feb 1972 | |
3890156 | Matsukawa | Jun 1975 | |
3931430 | Tada et al. | Jan 1970 | |
3952117 | Miyamoto | Apr 1976 | |
4012538 | Miyamoto et al. | Mar 1977 | |
4022624 | Miyamoto et al. | May 1977 | |
4101690 | Miyamoto et al. | Jul 1978 | |
4337280 | Miyamoto et al. | Jun 1982 | |
4398753 | Asano et al. | Aug 1983 | |
4613878 | Inaba et al. | Sep 1986 | |
4620205 | Iiyama et al. | Oct 1986 | |
4725315 | Sano et al. | Feb 1988 |
Number | Date | Country |
---|---|---|
1326889 | Aug 1973 | GBX |
1354313 | May 1974 | GBX |
Entry |
---|
Heterocyclic Chemistry, 2nd Ed., Joule and Smith, London, 1978, pp. 377 and 378. |