Benzoylecgonine, ecgonine and ecgonidine derivatives

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

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546126, 546128, 546130, C07D45106, C07D45108, C07D45112, A61K 3146

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057634564

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BRIEF SUMMARY
CROSS-REFERENCE

This application is a 371 of PCT/US95/07268 filed Jun. 14, 1995.


TECHNICAL FIELD OF THE INVENTION

The present invention relates to a novel class of covalently coupled benzoylecgonine, ecgonine and ecgonidine derivatives that are useful for alleviating the symptoms of immunoregulatory disorders, neuromuscular disorders, joint disorders, connective tissue disorders,. circulatory disorders and pain. Accordingly, this invention also relates to pharmaceutical compositions and methods for their use.


BACKGROUND OF THE INVENTION

Benzoylecgonine, ecgonine and ecgonidine are known metabolites of cocaine (see, for example, S. M. Roberts et al., "An Assay for Cocaethylene and Other Cocaine Metabolites in Liver Using High-Performance Liquid Chromatography", Anal. Biochem., 202, pp. 256-61 (1992); D. T. Chia and J. A. Gere, "Rapid Drug Screening Using Toxi-Lab Extraction Followed by Capillary Gas Chromatography/Mass Spectroscopy", Clin. Biochem., 20, pp. 303-06 (1987)). Routes for their preparation have been established (see, for example, A. H Lewin et al., "2.beta.-Substituted Analogues of Cocaine. Synthesis and Binding to the Cocaine Receptor", J. Med. Chem., 35, pp. 135-40 (1992); M. R. Bell and S. Archer, "L(+)-2-Tropinone", J. Amer. Chem. Soc.. 82, pp. 4642-44 (1960)).
We have demonstrated the pharmaceutical efficacy of benzoylecgonine and ecgonine in the treatment of rheumatoid arthritis, osteoarthritis and related inflammatory disorders (see, for example, U.S. Pat. Nos. 4,469,700, 4,512,996 and 4,556,663). We have also demonstrated the pharmaceutical efficacy of certain 2-.beta.-derivatized analogues of benzoylecgonine, ecgonine and ecgonidine (see, for example, co-pending U.S. patent application Ser. No. 07/999,307). We have now discovered a new class of easily synthesized, covalently coupled benzoylecgonine, ecgonine and ecgonidine derivatives that have novel therapeutic features and improve certain therapeutic properties of underivatized benzoylecgonine, ecgonine and ecgonidine.


SUMMARY OF THE INVENTION

It is a principal object of this invention to provide easily synthesized, covalently linked benzoylecgonine, ecgonine and ecgonidine derivatives which are useful for alleviating the symptoms of immunoregulatory disorders, neuromuscular disorders, joint disorders, connective tissue disorders, circulatory disorders and pain.
The benzoylecgonine, ecgonine and ecgonidine derivatives of this invention are represented by formulas I and II, respectively: ##STR1## wherein:
each R.sup.1 is independently selected from the group consisting of H; COR.sup.2 ; COBn; alkyl; alkenyl; and alkynyl, said alkyl, alkenyl and alkynyl being optionally substituted with OH, SH, NH.sub.2, CN, CF.sub.3 or halogen;
A is --L--(M).sub.p ;
B is --L--(M').sub.p ';
each p and p' is independently selected from the group consisting of 1 or 2;
each L is independently a linker which, consisting of --(CR.sup.2 R.sup.2).sub.n --CO--Q--; --(CR.sup.2 R.sup.2).sub.n --Q--CO--; --(CR.sup.2 R.sup.2).sub.n --O--C(OH)--; and --(CR.sup.2 R.sup.2).sub.n --Q--; or ##STR2## (c) if lining two ring systems chosen from compounds of formulas I and II, the same or different, to M or M' is ##STR3##
each n is independently selected from the group consisting of 0, 1, 2 and 3;
each Q is independently selected from the group consisting of --NH--, --O-- and --S--;
each M and M' is independently a moiety that, either alone or in combination with other M or M' moieties, enhance the distribution characteristics, intrinsic activity or efficacy of said compound, provided that M is not a moiety having the formula --CH.sub.2 --CHX--R.sup.3 when B is --O--CO--M', --O--M' or when B is not present (i.e., in compounds of formula II);
each R.sup.2 is independently selected from the group consisting of H; alkyl; alkenyl; alkynyl; alkoxy; aminoalkyl; haloalkyl; aryl; heterocyclyl; aralkyl; cycloalkyl; cycloalkylalkyl; halogen; aroyl, acyl; and aralkyl; any of said R.sup.2 being optionally substituted with OH, SH, NH.sub.2, oxo and halogen;
X is selected from

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