Patent ID: 7915248

Claim:
A compound of formula (I) in which M is selected from the group consisting of Si, Al and Ge, q is 0 or 1, R is a group G-(Q) m -((X) l —((Y) k —Z) n ) t wherein G is selected from the group consisting of O and O—Si(CH 3 ) 2 , Q is selected from the group consisting of T, Ph, CH 2 -Ph, and triazine, wherein T is selected from the group consisting of and —(CH 2 ) v —, and v is an integer comprised between 1 and 5, X is selected from the group consisting of O, S, T, O-T, S-T, T-O-T, T-S-T, Ph, and O-Ph, wherein T is as defined above, Y is selected from the group consisting of —(CH 2 ) v —, O—(CH 2 ) v —, —(CH 2 ) v —O—(CH 2 ) v —, phenyl, O-Ph, Ph-CH 2 , O-Ph-CH 2 and wherein v is as defined above, Z is a 10 B or 11 B boron cluster selected from the group consisting of o,m,p-carboranyl, undecahydro-closo-dodecaboranyl, 1-methyl-o,m,p-carboranyl, undecahydro-closo-dodecaboromercaptyl, nido-7,8-carboranyl, nido-7,9-carboranyl, nido-7,8-methylcarboranyl and bis-p-carboranyl, m is 0 or 1, l is an integer comprised between 0 and 3, k is 0 or 1, n is an integer comprised between 1 and 3, t is an integer comprised between 1 and 3, R 1 is selected from the group consisting of R, CH 3 , OH, O-glucide, (OCH 2 CH 2 ) s —OR 4 , and polypeptide, wherein R is as defined above, R 4 is selected from the group consisting of H, methyl, and ethyl, and s is an integer comprised between 1 and 10, R 2 is selected from the group consisting of H and (W) p —(OCH 2 CH 2 ) v —OR 4 , wherein W is selected from the group consisting of S—(CH 2 ) v , and OPh, p is 0 or 1, v and R 4 are as defined above, and R 3 is selected from the group consisting of H and R 2 , or, when R 2 and R 3 are in the positions 2,3,9,10,16,17,23,24, R 2 and R 3 , taken together, are a condensed aromatic nucleus; provided that: R 2 and R 3 are in the positions 1,4,8,11,15,18,22,25 or 2,3,9,10,16,17,23,24, when M is Si or Ge, q is 1, and when M is Al, q is 0, or a pharmaceutically acceptable salt thereof.