@article{221ac4016d914b009a0097fbb121fa8e,
title = "4-C-Me-DAB and 4-C-Me-LAB - Enantiomeric alkyl-branched pyrrolidine iminosugars - Are specific and potent α-glucosidase inhibitors; Acetone as the sole protecting group",
abstract = "The syntheses of 4-C-Me-DAB [1,4-dideoxy-1,4-imino-4-C-methyl-d-arabinitol] from l-erythronolactone and of 4-C-Me-LAB [from d-erythronolactone] require only a single acetonide protecting group. The effect of pH on the NMR spectra of 4-C-Me-DAB [pKa of the salt around 8.4] is discussed and illustrates the need for care in the analysis of both coupling constants and chemical shift. 4-C-Me-DAB (for rat intestinal sucrase Ki 0.89 μM, IC 50 0.41 μM) is a competitive - whereas 4-C-Me-LAB (for rat intestinal sucrase Ki 0.95 μM, IC50 0.66 μM) is a non-competitive - specific and potent α-glucosidase inhibitor. A rationale for the α-glucosidase inhibition by DAB, LAB, 4-C-Me-DAB, 4-C-Me-LAB and isoDAB - but not isoLAB - is provided. Both are inhibitors of endoplasmic reticulum (ER) resident α-glucosidase I and II.",
author = "Cruz, {Filipa P.Da} and Scott Newberry and Jenkinson, {Sarah F.} and Wormald, {Mark R.} and Butters, {Terry D.} and Alonzi, {Dominic S.} and Shinpei Nakagawa and Frederic Becq and Caroline Norez and Nash, {Robert J.} and Atsushi Kato and Fleet, {George W.J.}",
note = "Funding Information: Financial support [to F.P.C.] provided by the Funda{\c c}{\~a}o para a Ci{\^e}ncia e Tecnologia , Portugal is gratefully acknowledged. Part of this work was supported by Grant Number R01CA125642 from the National Cancer Institute (T.D.B., D.S.A.) and by grants from the French association {\textquoteleft}Vaincre la Mucoviscidose{\textquoteright} C.N., F.B.). We thank Dextra Laboratories Limited, Reading, UK for generous gifts of d -erythronolactone and l -erythronolactone.",
year = "2011",
month = jan,
day = "12",
doi = "10.1016/j.tetlet.2010.10.173",
language = "英語",
volume = "52",
pages = "219--223",
journal = "Tetrahedron Letters",
issn = "0040-4039",
publisher = "Elsevier Ltd.",
number = "2",
}