261775-50-2Relevant academic research and scientific papers
Synthesis of chiral 1,3-diols by radical-mediated regioselective opening of 2,3-epoxy alcohols using cp2TiCl
Chakraborty, Tushar K,Das, Sanjib
, p. 2313 - 2315 (2002)
Radical-mediated opening of chiral 2,3-epoxy alcohols 1a-e, regioselectively at the 2-position, using cp2TiCl in the absence of a hydrogen source leads to the formation of the 1,3-diols 2a-e.
Diastereoselective opening of trisubstituted epoxy alcohols: Application in the studies directed toward the synthesis of octenoic acid moiety of cryptophycins
Chakraborty, Tushar K.,Das, Sanjib
, p. 611 - 616 (2007/10/03)
Stereoselective synthesis of the 5,7-acetonide of (2E,5S,6R,7R,8S)-5,7,8-trihydroxy-6-methyl-8-phenyl-2-octenoic acid ethyl ester (3), an isomer of 2, precursor of the epoxy octenoic acid moiety 1 present in depsipeptide cryptophycins is achieved where diastereoselective opening of an intermediate trisubstituted epoxy alcohol 4 based on a radical-mediated method developed by us earlier furnishes the crucial '2-methyl-1,3-diol' moiety of the C5-C7 segment of the molecule. The protocol also allows the synthesis of some of the other 16 diasteromers of this hydroxy acid having 4 chiral centres which can find useful applications in the structure-activity relationship (SAR) studies of these potent antitumor agents.
