Wl. Jiang et al., Synthesis of enantiopure termini-differentiated heptane stereotriads. Application to side chain-functionalized tetrahydrofurans of IKD-8344, ORG LETT, 2(15), 2000, pp. 2181-2184
[GRAPHICS]
Enantiopure epoxy cycloheptenyl sulfones syn-7b and anti-7b are prepared in
five high-yielding and stereospecific operations from 1,3-cycloheptadiene,
These substrates serve as effective precursors for cis- and trans-substitu
ted tetrahydrofurans (12, 10) which are segments of the antineoplastic agen
t IKD-8344.