Patent ID: 6130245
Filing Date: 2000-10-10
Classification: A61K

Abstract:
A complex of the formula (I): ##STR3## where n is 0, 1, 2, 3, 4, 5, or 6; each of L.sup.1, L.sup.2, L.sup.3, and L.sup.4, independently, is Cl or Br;each of R, R', R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, and R.sup.12, independently, is hydrogen, lower alkyl, lower alkoxy, alkyl carboxylate or alkyl carboxylic acid salt; or each of CR.sup.1 R.sup.2 (that is, R.sup.1 and R.sup.2 together with the carbon which they substitute), CR.sup.3 R.sup.4, CR.sup.5 R.sup.6, CR.sup.7 R.sup.8, CR.sup.9 R.sup.10, CR.sup.11 R.sup.12, and CRR' independently, is C.dbd.O, andeach of X.sup.1, X.sup.2, X.sup.3, X.sup.4, X.sup.5, and X.sup.6, independently, is hydrogen, lower alkyl, alkyl carboxylate or alkyl carboxylic acid salt.