13051-21-3Relevant articles and documents
Glycosylation enhances the anti-migratory activities of isomalyngamide A analogs
More, Shivaji V.,Chang, Tzu Ting,Chiao, Yu-Pin,Jao, Shu-Chuan,Lu, Chung-Kuang,Li, Wen-Shan
, p. 169 - 178 (2013)
Three, new, fully synthetic glycosylated isomalyngamide A analogs 4-6 were prepared and evaluated for their anti-migratory activities in human breast cancer cells. The results of the study show that two glycosylated derivatives 4 and 5, containing mannose and galactose appendages, suppress metastatic events (e.g., migration, invasion and adhesion) in human breast adenocarcinoma MDA-MB-231 cells at "nontoxic" concentration levels. In contrast, derivative 6 that contains a lactose moiety, displays a less potent activity. The findings show that monosaccharide rather than disaccharide appendages to the isomalyngamide A backbone more greatly influence cell migration and invasive ability. Evidence has been gained for a mechanism for inhibition of metastatic activities in MDA-MB-231 cells by 4 and 5, involving inactivation of the expression of p-FAK and paxillin through the integrin-mediated antimetastatic pathway.
Spontaneous reaction of malonyl peroxides with methanol
Lapitskaya, Margarita A.,Vil, Vera A.,Vasil'eva, Ludmila L.,Daeva, Elena D.,Terent'ev, Alexander O.,Pivnitsky, Kasimir K.
, p. 243 - 245 (2017/06/06)
The spontaneous reaction of disubstituted malonyl peroxides (MPOs) with methanol affording monopermalonic acid monomethyl esters is fast (minutes) for lower homologues but is sharply decelerated (days) for the higher ones. Spirocyclopropyl-MPO is an excep
Selective monoesterification of malonic acid catalyzed by boric acid
Levonis, Stephan M.,Bornaghi, Laurent F.,Houston, Todd A.
, p. 821 - 823 (2008/03/12)
Boric acid catalyzes the monoesterification of malonic acid, likely through a chelation mechanism that is not available to the monoester product. Under more forcing conditions, diesters form to some extent, but conditions can be optimized to favour the monoester product (56?80%). With the easily handled solid acid catalyst, these reactions can be run with excess alcohol as solvent or with stoichiometric amounts of alcohol in acetonitrile with moderate heating. CSIRO 2007.