Flex and Intuit QuickBase

I'm using an http service object to open a connection to the Intuit QuickBase API, but the Flex error checker doesnt like
the use of QuicKBase's query language in the XML. Any ideas on how to get around this?

See the <query> parameter, it wont allow me to use { }

<mx:HTTPService id="QueryQBase" url="https://www.quickbase.com/db/bcm8g4h74?act=API_DoQuery" method="POST">
<mx:request>
<query>{3.GT.1}</query>
<fmt>structured</fmt>
<clist>7.8.10.24</clist>
<slist>6</slist>
<options>sortorder-A</options>
</mx:request>
</mx:HTTPService>