共 7 条
[3]
HIELSCHER JC, 1968, Patent No. 17933743
[4]
HIELSCHER JC, 1968, Patent No. 17931145
[5]
KIRK DN, 1968, STEROID REACTION MEC, P206
[7]
WIECHERT R, 1970, ANGEW CHEM, V82, P219