Number | Date | Country | Kind |
---|---|---|---|
52/135505 | Nov 1977 | JPX | |
52/135506 | Nov 1977 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4103083 | Ogawa et al. | Jul 1978 |
Entry |
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Ishida, N. et al., J. Antibiotics, Ser. A20, 62-65, (I) and 66-71 (II), (1967). |
Inouye, S. et al., Tetrahedron, 24, 2125, (1968). |
March, J., Advanced Organic Chemistry, McGraw Hill, New York, 1968, pp. 668-670. |