Patent number: 6699868
Abstract: Therapeutically active compounds of formula (I):
in which R1 to R4 means hydrogen, alkyl, alkenyl, aryl, arylalkyl, carboxyalkyl, hydroxyalkyl or halogenalkyl, or R2 and R3 form a ring of 5-7 carbon atoms, R5 to R9 means hydrogen, alkyl, alkenyl, aryl, arylalkyl, acyl, hydroxy, alkoxy, alkoxycarbonyl, amino, acylamino, alkylamino, aryloxy, halogen, cyano, nitro, carboxy, alkylsufonyl, sulfonamido or trifluoromethyl, wherein each aryl residue defined above by itself or as a part of another group may be substituted, and pharmaceutically acceptable salts and esters thereof. The compounds increase the calcium sensitivity of contractile proteins of the cardiac muscle and are thus useful in the treatment of congestive heart failure.
Type:
Grant
Filed:
December 26, 2002
Date of Patent:
March 2, 2004
Assignee:
Orion Corporation
Inventors:
Jarmo Pystynen, Aino Pippuri, Anne Luiro, Pentti Nore, Reijo Bäckström, Kari Lönnberg, Heimo Haikala, Jouko Levijoki, Petri Kaheinen, Juha Kaivola
Publication number: 20030158200
Abstract: Therapeutically active compounds of formula (I) in which R1 to R4 means hydrogen, alkyl, alkenyl, aryl, arylalkyl, carboxyalkyl, hydroxyalkyl or halogenalkyl, or R2 and R3 form a ring of 5-7 carbon atoms. R5 to R9 means hydrogen, alkyl, alkenyl, aryl, arylalkyl, acyl, hydroxy, alkoxy, alkoxycarbonyl, amino, acylamino, alkylamino, aryloxy, halogen, cyano, nitro, carboxy, alkylsulfonyl, sulfonamido or trifluoromethyl, wherein each aryl residue defined above by itself or as a part of another group may be substituted, and pharmaceutically acceptable salts and esters thereof. The compounds increase the calcium sensitivity of contractile proteins of the cardiac muscle and are thus useful in the treatment of congestive heart failure.
Type:
Application
Filed:
December 26, 2002
Publication date:
August 21, 2003
Inventors:
Jarmo Pystynen, Aino Pippuri, Anne Luiro, Pentii Nore, Reijo Backstrom, Kari Lonnberg, Heimo Haikala, Jouko Levijoki, Petri Kaheinen, Juha Kaivola