Number | Date | Country | Kind |
---|---|---|---|
19856 A/90 | Mar 1990 | ITX |
Number | Name | Date | Kind |
---|---|---|---|
3775431 | Rodewald et al. | Nov 1973 | |
4851547 | Kita et al. | Jul 1989 |
Number | Date | Country |
---|---|---|
0342613 | May 1989 | EPX |
0322395 | Jun 1989 | EPX |
0338435 | Oct 1989 | EPX |
279669 | Jul 1990 | DDX |
Entry |
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White et al. Tetrahedron 45(21), 6631-6644, 1989. |
Vekemans et al. J. Org. Chem., 1987, 52, 1093-1099. |