共 5 条
[1]
BIRD, 1956, J CHEM SOC, P3675
[2]
DJERASSI, 1948, J AM CHEM SOC, V70, P1911
[3]
ELLIS, 1956, J CHEM SOC, P1179
[4]
RINGOLD, 1956, J ORG CHEM, V21, P1333
[5]
WOODWARD, 1950, J AM CHEM SOC, V72, P494