Amino acid derivatives

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Phosphorus containing other than solely as part of an...

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548112, 548413, 548414, 548431, 548518, 548557, 548558, 558170, 558174, 562621, 562622, 562623, 562433, 562533, 564153, 514 79, 514 89, 514 91, 514119, 5142328, 5142372, 514296, 514321, 514326, 514422, 514426, 514428, 514575, 514616, 514825, 544126, 544130, 544141, 544157, 544168, 546 23, 546 24, 546200, 546208, C07F 928, C07F 906, C07C 9310, C07C25904, C07C25906, A61K 31675, A61K 3116, A61K 31185

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053045491

ABSTRACT:
Compounds of the formula ##STR1## wherein A is the group ##STR2## R.sup.1 is hydrogen, amino, protected amino, acylamino or lower alkyl optionally substituted by aryl, hydroxy, protected hydroxy, amino, protected amino, acylamino, maleimido, succinimido, naphthalimido, 2,3-dihydro-1,3-dioxo-1H-benz[d,e]isoquinol-2-yl, carboxy, protected carboxy, carbamoyl, mono(lower alkyl)carbamoyl, di(lower alkyl)carbamoyl, di(lower alkyl)amino, carboxy-lower alkanoylamino, pyrrolidino or morpholino; R.sup.2 is hydrogen or lower alkyl optionally substituted by aryl, amino, protected amino, di(lower alkyl)- amino, guanidino, carboxyl, protected carboxyl, carbamoyl, mono(lower alkyl) carbamoyl, di(lower alkyl)carbamoyl, di(lower alkoxy)phosphinyl, dihydroxyphosphinyl, pyrrolidino, piperidino or morpholino; R.sup.3 is hydrogen or lower alkyl optionally substituted by hydroxy, protected hydroxy, amino or protected amino; R.sup.4 is hydrogen, hydroxy, lower alkoxy or benzyloxy; and R.sup.5 is hydrogen or halogen and their pharmaceutically acceptable salts, which are useful for the control or prevention of degenerative joint diseases or for the treatment of invasive tumors, atherosclerosis or multiple sclerosis are described.

REFERENCES:
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patent: 4918105 (1990-04-01), Cartwright et al.
patent: 4996358 (1991-02-01), Handa et al.
patent: 5006651 (1991-04-01), Broadhurst et al.
Dayer J.-M. et al., Proc. Natl. Acad. Sci. USA, 73, 945 (1976).
Johnson-Wint, B., Anal. Biochem., 104, 175 (1980).

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