共 13 条
[1]
BURNETT RD, 1973, J CHEM SOC PERK T 1, P1830, DOI 10.1039/p19730001830
[5]
DUAX WL, 1975, ATLAS STEROID STRUCT, V1
[8]
RAO PN, 1963, J ORG CHEM, V28, P270
[9]
RAO RN, 1960, TETRAHEDRON, V10, P144