A new class of fluorophores 3-alkyl-6-methoxy-7-hydroxy-chromones (AMHCs) is developed and is suitable as reagents for biological imaging.
一种新型荧光物质3-烷基-6-甲氧基-7-羟基-香豆素(AMHCs)已开发,并适用于生物成像试剂。
Chromanone and thiochromanone compounds
申请人:Novartis AG
公开号:US06346626B1
公开(公告)日:2002-02-12
The invention concerns the compounds of formula I
wherein
R1 and R2 independently are hydrogen, acyl, alkoxycarbonyl or alkyl; either the sulfamoyloxy side chain is bound to the 6 position;
R3 is alkyl; alkenyl; alkinyl; a cycloalkyl moiety optionally substituted by alkyl, alkoxy or halogen; arylalkenyl; arylalkinyl; acyl; cycloalkylalkyl; 3-oxo-2-oxacamphanyl; or is 6,6-dimethylbicyclo[3.1.1]hept-2-en-2-yl; and
R4 is hydrogen; alkyl; hydroxy; or alkoxy;
or the sulfamoyloxy side chain is bound to the 7 position;
R3 has the significance indicated above for R4; and
R4 has the significance indicated above for R3;
X is O or S; and the symbol - - - is a single or a double bond;
in free form or salt form.
They can be prepared by sulfamoylation of corresponding hydroxylated compounds, by reduction and/or by N-substitution.
They are indicated for use as pharmaceuticals, particularly in the prophylactic or curative treatment of illnesses responsive to steroid sulfatase inhibition.
2-Substituted 4-(Thio)chromenone 6-<i>O</i>-Sulfamates: Potent Inhibitors of Human Steroid Sulfatase
作者:Peter Nussbaumer、Philipp Lehr、Andreas Billich
DOI:10.1021/jm020878w
日期:2002.9.1
high potency when the sulfamate group and the side chain are situated in diagonally opposite positions (i.e., 2,6- and 3,7-substitution pattern). The highest activity is achieved with fully branched, bulky aliphatic side chains and with thiochromen-4-one as the core element. 2-(1-Adamantyl)-4H-thiochromen-4-on-6-O-sulfamate (6c) is the most potent STS inhibitor discovered so far, and it is about 170-fold