Disclosed herein are compounds and compositions useful in the treatment of MCT4 mediated diseases, such as proliferative and inflammatory diseases, having the structure of Formula I:
Methods of inhibition MCT4 activity in a human or animal subject are also provided.
(α-Alkylation of α-heterosubstituted carboxylic acids without racemization
作者:Dieter Seebach、Reto Naef、Giorgio Calderari
DOI:10.1016/s0040-4020(01)82417-0
日期:1984.1
α-Hydroxy- and α-mercapto-carboxylic acids are condensed with pivalaldehyde to give 2-t-butyl-5-substituted-l,3-dioxolanones or 1,3-oxathiolanones (2); the predominate CK-isomers are separated by crystallization. The cis-disubstituted heterocycles 2 derived from lactic, mandelic and malic acid furnish, after deprotonation with LDA, reaction with electrophiles such as alkyl halides, aldehydes and ketones
<i>Linum usitatissimum</i>Hydroxynitrile Lyase Cross-Linked Enzyme Aggregates: A Recyclable Enantioselective Catalyst
作者:Fabien L. Cabirol、Pei Loo Tan、Benson Tay、Shiryn Cheng、Ulf Hanefeld、Roger A. Sheldon
DOI:10.1002/adsc.200800309
日期:2008.10.6
An immobilized form of the hydroxynitrile lyase from Linum usitatissimum (LuHNL) as cross-linkedenzymeaggregate (CLEA) with high specific activity (303.5 U/g) and recovery (33%) was developed. Molecular imprinting using 2-butanone as additive in the immobilization process improved the synthetic activity of the biocatalyst. LuCLEA could be partially recycled for the synthesis of (R)-2-butanone cyanohydrin
开发了固定化形式的亚麻属(Linum usitatissimum)的羟腈裂解酶(Lu HNL)作为具有高比活性(303.5 U / g)和回收率(33%)的交联酶聚集体(CLEA)。在固定化过程中使用2-丁酮作为添加剂的分子印迹提高了生物催化剂的合成活性。Lu CLEA可以部分循环用于制备规模为两批的(R)-2-丁酮氰醇的合成。将得到的对映体富集的氰醇进一步水解以得到(R)-2-羟基-2-甲基丁酸,产率为85%(得自2-丁酮)和87%ee。
Process for preparing optically active &agr;-hydroxy acids and derivatives thereof
申请人:Chan Hardy W.
公开号:US06639095B1
公开(公告)日:2003-10-28
The present invention provides a process for preparing optically active &agr;-hydroxy acids and derivatives thereof by subjecting the alkylated 1,3-dioxolanones of formula (IV) wherein R1 and R2 are the same or different and are each independently H or C1-6 alkyl; R5 is H, C1-16 alkyl, or unsubstituted or substituted phenyl; and R6 is C1-8 alkyl, C2-7 alkenyl or unsubstituted or substituted benzyl, to either alcoholysis or hydrolysis, in which the alkylated 1,3-dioxolanones are obtained by using 10-camphorsulfonamide as a chiral auxiliary.
Electrophilic asymmetric syntheses of α-hydroxy carboxylic acids
作者:Jerry W. Ludwig、Martin Newcomb、David E. Bergbreiter
DOI:10.1016/s0040-4039(00)84629-8
日期:——
Asymmetric electrophilic synthesis of α-hydroxy carboxylic acids from chiral amide derivatives of tert-butyl- and trialkylsilyl- protected glycolic and lactic acids are described which lead to chiral α-hydroxy carboxylic acids in 60–95% diastereomic excess.