共 22 条
[2]
BERGERON RJ, 1984, SYNTHESIS-STUTTGART, P782
[5]
BOSCHI PM, 1978, Patent No. 2855256
[7]
GODTFREDSEN WO, 1955, ACTA CHEM SCAND, V46, P2322
[8]
Guggisberg A., 1983, ALKALOIDS, V22, P85
[10]
JASYS VJ, 1992, J ORG CHEM, V57, P1824