共 6 条
[1]
GINSBURG VA, 1961, CA 17477, V44
[2]
HARVEY RG, 1963, TETRAHEDRON LETT, P1801
[5]
PUDVIK AN, 1964, CA 1788, V60
[6]
ROBJOHN N, 1955, ORG SYNTH, V3, P375