Acid-Catalyzed <i>O</i>-Glycosylation with Stable Thioglycoside Donors
作者:Kristina D. Lacey、Rashanique D. Quarels、Shaofu Du、Ashley Fulton、Nicholas J. Reid、Austin Firesheets、Justin R. Ragains
DOI:10.1021/acs.orglett.8b02125
日期:2018.9.7
4-(4-methoxyphenyl)-4-pentenylthioglycosides (MPTGs), undergo acid-catalyzed O-glycosylations with a range of sugar and nonsugar alcohols at 25 °C. Electron density at the styrene alkene is critical for reactivity while sugar protecting group patterns have a minimal effect. In contrast with most methods for thioglycoside activation, acid-catalyzed activation of MBTGs is compatible with electroneutral alkenes
申请人:The Provost, Fellows, Foundation Scholars, and The
Other Members of Board, of The College of The Holy
and Undivided Trinity of Queen Elizabeth
公开号:EP2975046A1
公开(公告)日:2016-01-20
A compound of formula (I) or a pharmaceutically acceptable derivative thereof,
wherein R1,R2, R3, R4, R5, X, m and n are defined in the specification; a process for preparing such compounds; a pharmaceutical composition comprising such compounds; and the use of such compounds in medicine.
式 (I) 的化合物或其药学上可接受的衍生物、
其中 R1、R2、R3、R4、R5、X、m 和 n 在说明书中定义;制备此类化合物的工艺;包含此类化合物的药物组合物;以及此类化合物在医学中的用途。
NOVEL COMPOUNDS
申请人:The Provost, Fellows, Foundation Scholars, and the other members of Board, of the College of the Hol
公开号:US20170210778A1
公开(公告)日:2017-07-27
A compound of formula (I) or a pharmaceutically acceptable derivative thereof, (formula 1) wherein R
1
, R
2
, R
3
, R
4
, R
5
, X, m and n are defined in the specification; a process for preparing such compounds; a pharmaceutical composition comprising such compounds; and the use of such compounds in medicine.
[EN] NOVEL COMPOUNDS<br/>[FR] NOUVEAUX COMPOSÉS
申请人:PROVOST FELLOWS & SCHOLARS COLLEGE OF THE HOLY UNDIVIDED TRINITY OF QUEEN ELIZABETH NEAR DUBLIN
公开号:WO2016008946A1
公开(公告)日:2016-01-21
A compound of formula (I) or a pharmaceutically acceptable derivative thereof, (formula 1) wherein R1,R2, R3, R4, R5, X, m and n are defined in the specification; a process for preparing such compounds; a pharmaceutical composition comprising such compounds; and the use of such compounds in medicine.
Stereoselective Syntheses of 4-Oxa Diaminopimelic Acid and Its Protected Derivatives via Aziridine Ring Opening
作者:Hongqiang Liu、Vijaya R. Pattabiraman、John C. Vederas
DOI:10.1021/ol701742x
日期:2007.10.1
Regio- and stereoselective aziridine ring opening with oxygen nucleophiles derived from serine and threonine provides a route to stereochemically pure 4-oxa-2,6-diaminopimelic acid (oxa-DAP) and its methyl-substituted derivatives. Oxa-DAP is a substrate of DAP epimerase, a key enzyme for biosynthesis of l-lysine and formation of peptidoglycan precursors. Orthogonally protected analogues of lanthionine