Novel quinazolinamide derivatives of the formula, in which R1-R5 and X have the meanings indicated in Claim 1, are HSP90 inhibitors and can be used for the preparation of a medicament for the treatment of diseases in which the inhibition, regulation andor modulation of HSP90 plays a role. Within the sextant system of M\u2014Al\u2014Si\u2014O\u2014N\u2014C\u2014Ln and quintuplet system of M\u2014Si\u2014O\u2014N\u2014C\u2014Ln, the phosphors are composed of either one single crystalline phase or two crystalline phases with high chemical and thermal stability. The inside of the object is scanned with a second ultrasound beam through the second probe to acquire second ultrasound image data associated with the object. A 2-cyclopentanone represented by the following general formula : . The system of displacement structures also can provide spherical corrections in the lens. The conference system uses the publishsubscribe infrastructure to provide instant state changes in the contact list using published updates to generate state messages for those users subscribing to contacts using the conference system.