Matches in SemOpenAlex for { <https://semopenalex.org/work/W1970123635> ?p ?o ?g. }
- W1970123635 endingPage "2070" @default.
- W1970123635 startingPage "2056" @default.
- W1970123635 abstract "Hecogenin acetate (1) was converted to North 1 azidoketone 5 involving several key transformations: (1) conversion of cyclic sulfate 33b to allylic alcohol 40 via Reich iodoso olefination; (2) E-ring annulation via intermolecular oxygen alkylation of highly functionalized secondary alcohol 40 using rhodium-catalyzed decomposition of an α-diazophosphonoacetate to provide α-alkoxyphosphonoacetate 52, with subsequent intramolecular Wadsworth−Emmons reaction to provide alkoxydihydrofuran 53; and (3) establishment of the C20 stereochemistry by chromium(II) reduction of tertiary bromide 86 to a 9:1 mixture of diastereomeric spiroketals 90α/90β, separated as silyl ethers 91α/91β. Conversion of 91α to α-azidoketone 5 was uneventful." @default.
- W1970123635 created "2016-06-24" @default.
- W1970123635 creator A5032525808 @default.
- W1970123635 creator A5041593666 @default.
- W1970123635 creator A5045471230 @default.
- W1970123635 creator A5085626805 @default.
- W1970123635 creator A5086744300 @default.
- W1970123635 date "1999-03-01" @default.
- W1970123635 modified "2023-10-12" @default.
- W1970123635 title "Synthesis of the North 1 Unit of the Cephalostatin Family from Hecogenin Acetate<sup>1</sup>" @default.
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