Benzodiazinone-hydroxypyrazolyl compounds, cardiotonic compositions including the same and their uses

A compound of the formula ##STR24## wherein:

• x is 0;
• Y is ##STR25## a is 1 or 2;
• R.sup.1, R.sup.3, R.sup.4 and R.sup.6 are each independently H, alkyl having about one to about six carbon atoms, phenyl lower alkyl or substituted phenyl lower alkyl;
• R hd R.sup.5 are H or alkyl having about one to about six carbon atoms;
• and
• geminal R.sup.4 and R.sup.5 groups may together form a spiro substituent, --(CH.sub.2).sub.d --, where d is 2 to 5;
• wherein substituted phenyl means a phenyl group substituted by one or more of lower alkyl, lower alkoxy, amino, lower alkyl amino, lower alkyl mercapto, hydroxy, hydroxy lower alkyl, acetoxy, benzyloxy, phenoxy, lower alkyl sulfinyl or lower alkyl sulfonyl;
• or a pharmaceutically acceptable salt thereof.

A compound of the formula ##STR26## wherein:

• x is 0;
• Y is ##STR27## b is 1 or 2;
• R.sup.1, R.sup.3, R.sup.4 and R.sup.6 are each independently H, alkyl having about one to about six carbon atoms, phenyl lower alkyl or substituted phenyl lower alkyl;
• R and R.sup.5 are H or alkyl having about one to about six carbon atoms;
• geminal R.sup.4 and R.sup.5 groups may together form a spiro substituent, --(CH.sub.2).sub.d --, where d is 2 to 5;
• wherein substituted phenyl means a phenyl group substituted by one or more of lower alkyl, lower alkoxy, amino, lower alkyl amino, lower alkyl mercapto, hydroxy, hydroxy lower alkyl, acetoxy, benzyloxy, phenoxy, lower alkyl sulfinyl or lower alkyl sulfonyl;
• or a pharmaceutically acceptable salt thereof.