共 23 条
[4]
BOGUSLAVSKAYA LS, 1987, ZH ORG KHIM+, V23, P262
[5]
GOPINATHAN MB, 1979, TETRAHEDRON LETT, P3875
[7]
HUTHMACHER K, 1978, SYNTHESIS-STUTTGART, P693
[8]
LERCH U, 1971, J ORG CHEM, V36, P3861