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The reactions of cis-16-azidomethyl,17-hydroxyestrone derivatives with a range of aldehydes under the conditions of the Schmidt reaction were examined. The 16β-azidomethyl,17β-hydroxy isomer resulted… (More)
The Lewis acid-induced cyclization of the 3-methyl and 3-benzyl ethers of an unsaturated secoestrone aldehyde furnished D-homosteroids containing 16β-oriented halogens on the sterane skeleton.
Reduction of 16-(hydroxymethylidene)-3-methoxy-13α-estra-1,3,5(10)-trien-17-one yielded a mixture of two diastereomeric diols in the 6:1 ratio. The configurations of the newly formed stereogenic… (More)
Title conjugate addition—rearrangement sequence can be included into a one-pot two-step sequence to give the title chromenecarboxamides (III) starting from salicylic aldehyde derivatives (IV).
A straightforward, site-selective arylation of the bis(triflate) of estrone by Suzuki–Miyaura reactions has been developed. Monoarylation occurs selectively at the D-ring with good to excellent… (More)