106757-56-6Relevant articles and documents
Synthesis of key fragments of amphidinolide Q - A cytotoxic 12-membered macrolide
Kawa, Kohei,Hara, Akihiro,Ishikawa, Yuichi,Nishiyama, Shigeru
, p. 5422 - 5436 (2011)
β-Hydroxy aldehyde and alkyl ketone moieties were effectively synthesized as key intermediates of amphidinolide Q, a cytotoxic macrolide from the cultured dinoflagellate Amphidinium sp.. The asymmetric center of the former derivative was produced by Sharpless asymmetric epoxidation, followed by E-selective 1,4-addition to give the sp2 methyl group. Derivatization of the L-ascorbic acid derivative by Evans asymmetric alkylation and Peterson olefination provided the latter intermediate. The coupling reaction of the segments was examined.
A pyrrolysine analogue for protein click chemistry
Fekner, Tomasz,Li, Xin,Lee, Marianne M.,Chan, Michael K.
supporting information; experimental part, p. 1633 - 1635 (2009/06/30)
(Chemical Equation Presented) Ignoring the STOP sign: A pyrrolysine analogue bearing a terminal alkyne was site-specifically incorporated into recombinant calmodulin (CaM) through a UAG codon. The resulting protein was labeled with an azide-containing dye using a copper(I)-catalyzed click reaction. Subsequent application of an orthogonal cysteine tagging method yielded a CaM labeled with two distinct fluorophores that enabled its study by FRET spectroscopy.
Oxidation method for primary or secondary alcohols
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Page/Page column 4, (2010/11/08)
A method for preparing an aldehyde or ketone by oxidizing a primary or secondary alcohol in the presence of a nitroxyl radical compound and a co-oxidant in an organic solvent, which process is characterized in using an organic N-bromoamide compound or a c