BOGOSLOVSKIJ N. N.; LAPKIN I. I.; KOLBINA N. M.; SINANI S. V.; DROVOSEKOV+, TR. URALSK. YH-TOB. ORGAN. XIMIYA, 1975, 3, 218-221
作者:BOGOSLOVSKIJ N. N.、 LAPKIN I. I.、 KOLBINA N. M.、 SINANI S. V.、 DROVOSEKOV+
DOI:——
日期:——
Trityl Derivatives for Enhancing Mass Spectrometry
申请人:Shchepinov Mikhail
公开号:US20110065196A1
公开(公告)日:2011-03-17
The present invention provides a method of forming an ion of formula (I) comprising the steps of: (i) reacting a compound of the formula (IIa); with a biopolymer, B
P
, having at least one group capable of reacting with M to form a covalent linkage, to provide a biopolymer derivative of the formula (IIIa); and (ii) cleaving the C—X bond between X and the α-carbon atom of the derivative of formula (IIIa) to form the ion of formula (I); where: (IV) is a carbon atom bearing a single positive charge or a single negative charge; and X is a group comprising a thioether sulphur atom bound directly to the α-carbon which is capable of being cleaved from the α-carbon atom to form an ion of formula (I). The biopolymer derivatives of the invention have enhanced ionisability with respect to free biopolymer (B
P
) enabling improved analysis of the biopolymer using mass spectrometry.
BOGOSLOVSKIJ N. V.; KOLBINA N. M., TR. ESTESTVENNONAUCH. IN-TA PRI PERM. YH-TE, 1975, 13, HO 3, 138-141