Synthesis of a tetraamido macrocycle ligand from a novel diamidodiol
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United States of America Patent
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May 7, 2002
Issued Date -
N/A
app pub date -
Aug 30, 2001
filing date -
Jul 2, 1999
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Abstract
A new composition of matter for a diamidodiol and a method for preparing the diamidodiol. The exemplary diamidodiol has the formula C.sub.15 H.sub.30 N.sub.2 O.sub.4 and is prepared by reacting a first quantity of 2-amino-2-methyl-1-propanol with a second quantity of a di-substituted malonyl dichloride (i.e., diethylmalonyl dichloride), preferably in ethyl acetate as solvent. A tetraamido macrocycle is prepared from the diamidodiol in two steps by oxidizing the diamidodiol to form a diacid followed by coupling using a known procedure of the diacid with an aryl diamine (e.g., 1,2-diaminobenzene) to yield the tetraamido macrocycle.
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