作者:Stephen J. Baker、Kenneth J.M. Beresford、Douglas W. Young
DOI:10.1016/j.tet.2014.06.048
日期:2014.10
A synthesis of protected homochiral tetrahydropteridines from (2S)-malic acid has been developed. This presents methodology for the synthesis of reduced pteridine coenzymes and pharmaceuticals. (C) 2014 Published by Elsevier Ltd.
OXAZOLIDINONE DERIVATIVE HAVING INHIBITORY ACTIVITY ON 11BETA-HYDROXYSTEROID DEHYDROGENASE TYPE 1
申请人:Itai Akiko
公开号:US20100113448A1
公开(公告)日:2010-05-06
Disclosed is a compound which is useful as an 11β-hydroxysteroid dehydrogenase type 1 inhibitor.
A compound represented by the formula:
its pharmaceutically acceptable salt, or a solvate thereof,
wherein R
1
is optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted heterocycle or optionally substituted heterocyclealkyl,
X is —O—, —NR
3
—, —NR
3
C(═O)— or —NR
3
S(═O)
2
—,
R
2
is optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl or optionally substituted heteroarylalkyl,
R
3
is hydrogen or optionally substituted alkyl.
US7998992B2
申请人:——
公开号:US7998992B2
公开(公告)日:2011-08-16
A straightforward synthesis of L-isoserinal
作者:Federico Junquera、Francisco L. Merchán、Pedro Merino、Tomas Tejero
DOI:10.1016/0040-4020(96)00309-2
日期:1996.5
A convenient preparation of L-isoserinal 3 in six steps and 32.8% overall yield employing D-glyceraldehyde acetonide 1 as starting material is described. The procedure is inexpensive, easily scaled up and proceeds without observable racemization.