Abstract: Compounds of the formula ##STR1## in which the symbols are as defined herein, inhibit the activity of endothelin.

Abstract: Compounds of the formula ##STR1## inhibit the activity of endothelin. The symbols are defined as follows: R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each directly bonded to a ring carbon and are each independently(a) hydrogen;(b) alkyl, alkenyl, alkynyl, alkoxy, cycloalkyl, cycloalkylalkyl, cycloalkenyl, cycloalkenylalkyl, aryl, aryloxy, aralkyl or aralkoxy, any of which may be substituted with Z.sup.1, Z.sup.2 and Z.sup.3 ;(c) halo;(d) hydroxyl;(e) cyano;(f) nitro;(g) --C(O)H or --C(O)R.sup.5 ;(h) --CO.sub.2 H or --CO.sub.2 R.sup.5 ;(i) --Z.sup.4 --NR.sup.6 R.sup.7 ;--Z.sup.4 --N(R.sup.10)--Z.sup.5 --NR.sup.8 R.sup.9 ; or(k) R.sup.3 and R.sup.4 together may also be alkylene or alkenylene, either of which may be substituted with Z.sup.1, Z.sup.2 and z.sup.3, completing a 4- to 8-membered saturated, unsaturated or aromatic ring together with the carbon atoms to which they are attached; and the remaining symbols are as defined in the specification.

Abstract: Compounds of the formula ##STR1## inhibit the activity of endothelin. The symbols are defined as follows: R.sup.1, R.sup.2 and R.sup.3 are each independently(a) hydrogen, except that R.sup.1 is other than hydrogen;(b) alkyl, alkenyl, alkynyl, alkoxy, cycloalkyl, cycloalkylalkyl, cycloalkenyl, cycloalkenylalkyl, aryl, aryloxy, aralkyl or aralkoxy, any of which may be substituted with Z.sup.1, Z.sup.2 and Z.sup.3 ;(c) halo;(d) hydroxyl;(e) cyano;(f) nitro;(g) --C(O)H or --C(O)R.sup.6 ;(h) --CO.sub.2 H or --CO.sub.2 R.sup.6 ;(i) --SH, --S(O).sub.n R.sup.6, --S(O).sub.m --OH, --S(O).sub.m --OR.sup.6, --O--S(O).sub.m --R.sup.6, --O--S(O).sub.m OH or --O--S(O).sub.m --OR.sup.6 ;(j) --Z.sup.4 --NR.sup.7 R.sup.8 ; or(k) --Z.sup.4 --N(R.sup.11 --Z.sup.5 --NR.sup.9 R.sup.10 ;and the remaining symbols are as defined in the specification.

Abstract: Endothelin-inhibiting compounds of the formula ##STR1## wherein: one of R.sup.1 and R.sup.2 is Y.sup.2 -CO.sub.2 H and the other is R;R is(a) hydrogen,(b) alkyl,(c) alkenyl,(d) alkynyl,(e) cycloalkyl,(f) cycloalkenyl,(g) aryl,(h) cycloalkylalkyl,(i) cycloalkenylalkyl, or(j) aralkyl;R.sup.3 is aryl or heteroaryl;X.sup.1 and X.sup.2 are each independently(a) hydrogen,(b) halo or haloalkyl,(c) hydroxy,(d) alkoxy(e) cyano,(f) nitro, or(g) amino, alkylamino, or dialkylamino;and the remaining symbols are as defined in the specification.

Abstract: Compounds of the formula ##STR1## inhibit endothelin, wherein: one of X and Y is N and the other is O; R is naphthyl or naphthyl substituted with R.sup.1, R.sup.2 and R.sup.3 ;R.sup.1, R.sup.2 and R.sup.3 are each independently hydrogen; alkyl, alkenyl, alkynyl, alkoxy, cycloalkyl, cycloalkylalkyl, cycloalkenyl, cycloalkenylalkyl, aryl, or aralkyl, any of which may be substituted with Z.sup.1, Z.sup.2 and Z.sup.3 ; halo; hydroxyl; cyano; nitro; --C(O)H; --C(O)R.sup.6 ; CO.sub.2 H; --CO.sub.2 R.sup.6 ; --SH; --S(O).sub.n R.sup.6 ; --S(O).sub.m --OH; --S(O).sub.m --OR.sup.6 ; --O--S(O).sub.m --R.sup.6 ; --O--S(O).sub.m OH; --O--S(O).sub.m --OR.sup.6 ; --Z.sup.4 --NR.sup.7 R.sup.8 ; or --Z.sup.4 --N(R.sup.11)--Z.sup.5 --NR.sup.9 R.sup.10 ;R.sup.4 and R.sup.5 are each independently hydrogen; alkyl, alkenyl, alkynyl, alkoxy, cycloalkyl, cycloalkylalkyl, cycloalkenyl, cycloalkenylalkyl, aryl, or aralkyl, any of which may be substituted with Z.sup.1, Z.sup.2 and Z.sup.

Abstract: Compound of the formula ##STR1## in which A is O, S, or NR.sup.3 ; G is CH or N; R and R.sup.1 are independently alkyl, alkoxy, haloalkoxy or alkylamino; R.sup.2 is phenyl, substituted phenyl, alkyl, cycloalkyl, haloalkyl or --CH.sub.2 [(R.sup.4)C(R.sup.5).sub.n --Z; R.sup.3 and R.sup.7 are, independently, hydrogen, alkyl, --C(O)NH.sub.2 or --C(O)alkyl; R.sup.4 and R.sup.5 are independently hydrogen, alkyl, or halogen; R.sup.6 is halogen, alkyl, alkoxy, haloalkoxy, NO.sub.2, amino, alkyl substituted amino, or acyl substituted amino; n is 0 to 5; Z is cyano, amino, alkylamino, dialkylamino, --NHCO.sub.2 alkyl, alkoxy, alkylthio, alkylsulfonyl, alkenyl, alkynyl, phenyl or substituted phenyl; and Q is hydrogen, halogen, alkyl, alkoxy, haloalkoxy, nitro, amino, haloalkyl, alkythio, alkylsulfonyl, phenyl, substituted phenyl or phenoxy; or a 5 or 6 membered aromatic heterocycle having the formula ##STR2## in which "m" is 0 or 1; A' is O, S, or NR.sup.

Abstract: A vinyl tricarbonyl compound of the formula ##STR1## or its monohydrate of the formula ##STR2## wherein R.sub.1 is a hydrogen, halogen, unsubstituted or substituted C.sub.1 to C.sub.30 alkyl, unsubstituted or substituted aryl, arylalkyl, and cycloalkyl with 3 to 7 carbon atoms,R.sub.2 is hydrogen, halogen, unsubstituted or substituted C.sub.1 to C.sub.30 alkyl, unsubstituted or substituted aryl, arylalkyl, cycloalkyl with 3 to 7 carbon atoms, cyano, nitro, or a heterocyclic,R.sub.3 is hydrogen, halogen, unsubstituted or substituted C.sub.1 to C.sub.30 alkyl, unsubstituted or substituted aryl, arylalkyl, cycloalkyl with 3 to 7 carbon atoms, cyano, nitro, or a heterocyclic, andR.sub.4 is unsubstituted or substituted C.sub.1 to C.sub.30 alkyl, unsubstituted or substituted aryl, arylalkyl, cycloalkyl are 3 to 7 carbon atoms. Such vinyl tricarbonyl compound is effective against tumor cells.

Abstract: Compounds of the formula ##STR1## in which Y is hydrogen, lower alkyl, or an alkali metal or alkaline earth metal, and Z is selected from hydrogen, a hydrogen halide complex or a tri(lower)alkylmethoxycarbonyl group, their use as herbicides and herbicidal compositions thereof are disclosed.