Problem importing jar

[baschti]

Hi I am trying to import the i/o lib of CDK (Chemistry Development Kit) to Matlab.

I copied the cdk_io.jar to c:\Program Files\MATLAB704\java\jarext
and added
c:\Program Files\MATLAB704\java\jarext\cdk_io.jar

to classpath.txt.

If I call
>import cdk_io.MDLReader.*
(a class for reading MDL files) I get no error. But if I try to get an according object by calling the constructor

>object = MDLReader(input)

I get ??? Undefined command/function 'MDLReader'.

Has anybody an idea why this happens?

Thanks,

Sebastian