共 9 条
- [2] DANIELS PJL, 1973, CHEM COMMUN, P675
- [3] ELY R, 1973, CARBOHYDR RES, V27, P63
- [4] FERLAND JM, 1966, TETRAHEDRON LETT, V30, P3617
- [6] JIN H, THESIS U NEW BRUNSWI
- [7] SEN A, 1982, CHEM COMMUN, P1214
- [8] TSAI TYR, 1979, HETEROCYCLES, V12, P1397