Selective monobenzylation of 2,2-bis(hydroxymethyl)propionic acid (bis-MPA) to yield an AB linear monomer and analogous linear oligomers
作者:Joseph A. Giesen、Scott M. Grayson
DOI:10.1016/j.tetlet.2020.152016
日期:2020.6
synthesis utilizes a generic acid-catalyzed esterification of bis-MPA to the ethylester. Subsequently, a selective mono-benzylation mediated by silver(I) oxide affords the monobenzyl ether of the ethylester. Finally, a simple base hydrolysis of monobenzyl ether ethylester yields 3-(benzyloxy)-2-(hydroxymethyl)-2-methylpropanoic acid, the AB monomer. This synthesis was utilized to generate gram quantities
The present invention provides a compound having high antitumor activity, which is useful for therapeutic and preventive agents effective for proliferative diseases such as cancer; a production method thereof; an intermediate compound useful for such production; and a pharmaceutical composition comprising such a compound. The present invention provides a compound represented by the formula (1):
wherein X represents an aryl group or heteroaryl group which may be substituted, Cy represents a 4- to 7-membered monocyclic heterocyclic ring or a 8- to 10-membered condensed heterocyclic ring which may be substituted, and Z represents O, S, or NRa; or a prodrug thereof; or a pharmaceutically acceptable salt thereof; and a pharmaceutical and a pharmaceutical composition which comprise the compound.