Ace-inhibitor nitric salts

Nitric salts of ACE inhibitors having the following formulas:

• in formula
• or N—CH3
• Y=CH3, or phenyl;
• RIII=H,
• RIII together with RIV forms the following ring in the carbon at position 4
• RIII together with RV (carbons at positions 4 and 5) forms the cyclohexane or cyclopentane rings
• RIV=H, or RIV forms with RIII ring (IVa);
• RV=H, or a free valence or RV forms with RIII rings (IIIa) or (IIIb);
• RVI=H, or a single bond —O when RV is a free valence so as to form a ketone group with the carbon atom at position 5.