Cyclic ether derivatives and their use

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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514 89, 514 91, 514101, 514450, 514459, 514471, 546 22, 548112, 548413, 549222, 549346, 549419, 549474, A61K 31665, C07F 958, C07F 965, C07F 9142

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048913634

ABSTRACT:
Compounds of formula (I): ##STR1## (wherein: l is 2-4; A and B are oxygen or sulfur; one of R.sup.1 and R.sup.2 represents a long chain alkyl, alkylcarbamoyl or aliphatic acyl group and the other of R.sup.1 and R.sup.2 represents a group of formula (III) or (II.sub.f): ##STR2## in which E represents a single bond, a bivalent heterocyclic group or a group of formula --CO--, --COO-- or --CONR.sup.6 --, where R.sup.6 is hydrogen or an imino-protecting group; m is 0-3; n is 0-10; q is 0 or 1; R.sup.4 is optionally protected hydroxy, mercapto group or carboxy; Q is an amino or nitrogen-containing heterocyclic group;

REFERENCES:
patent: 4794183 (1988-12-01), Nakamura et al.

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