Patent ID: 7423059

Claim:
A compound of the following Formula I: wherein Z is carbon; m and n are each independently an integer from 0 to 3, and the sum of m and n is 3; each X is independently substituted or unsubstituted alkyl; substituted or unsubstituted alkylsilyl; substituted or unsubstituted alkenyl; substituted or unsubstituted alkynyl; substituted or unsubstituted alkoxy; substituted or unsubstituted alkylthio; substituted or unsubstituted alkylamino; substituted or unsubstituted alkylsulfinyl; substituted or unsubstituted alkylsulfonyl; substituted or unsubstituted aralkyl; substituted or unsubstituted carbocyclic aryl; or a substituted or unsubstituted heteroaromatic or heteroalicyclic group having from 1 to 3 rings, 3 to 8 ring members in each ring and from 1 to 3 hetero atoms; p is an integer from 2 to 4; and pharmaceutically acceptable salts thereof.