共 23 条
[1]
ANDERSEN KK, 1970, TETRAHEDRON LETT, P5253
[6]
DJERASSI C, 1963, STEROID REACTIONS, P76
[7]
Fraser R. R., 1971, CHEM COMMUN, P1450
[10]
HERZ JE, 1971, TETRAHEDRON LETT, P2949