Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2006-10-24
2006-10-24
Saeed, Kamal A. (Department: 1626)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C548S311400, C548S324500
Reexamination Certificate
active
07125904
ABSTRACT:
Compounds of formula I:where R1, R2and R3are the same or different and signify hydrogens, halogens, alkyl, alkylaryl, alkyloxy, hydroxy, nitro, amino, alkylcarbonylamino, alkylamino or dialkylamino group; R4signifies hydrogen, alkyl or alkylaryl group; X is CH2, O or S, and n is 1, 2 or 3, with the proviso that if X is CH2, n is not 1, and a method for their preparation. The compounds have potentially valuable pharmaceutical properties for the treatment of cardiovascular disorders such as hypertension and chronic heart failure.
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Beliaev Alexander
Learmonth David Alexander
Soares da Silva Patricio Manuel Viera Araújo
Barker Michael P.
Portela & C.A., S.A.
Rankin, Hill Porter & Clark LLP
Saeed Kamal A.
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