Substituted aminomethylenebis(phosphonic acid) derivatives

Details Substituted aminomethylenebis(phosphonic acid) derivatives Substituted aminomethylenebis(phosphonic acid) derivatives

1989-04-05

1990-06-12

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549 5, 549 6, 558155, 558158, 562 13, C07F 940, C07F 965

Patent

active

049334727

ABSTRACT:
Substituted aminomethylenebis(phosphonic acid) derivatives represented by the general formula: ##STR1## in which R.sup.1, R.sup.2 R.sup.3 and R.sup.4 may be the same or different, each represents a hydrogen atom or a lower alkyl group; "m" is zero or represents an integer from 1 to 4; and a ring "A" represents a cycloalkenyl group having 5 to 8 carbon atoms, a bicycloheptyl group, a bicycloheptenyl group or a saturated heterocyclic group having 4 to 7 carbon atoms and containing an oxygen atom, a sulfur atom, a sulfinyl group (--SO--) or a sulfonyl group (--SO.sub.2 --),
or pharmaceutically acceptable salts thereof.

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