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US 2014/0155428 A1Published application
Novel compounds
AssigneeChiesi Farmaceutici S.p.A.
InventorsElisabetta ARMANI, Gabriele Amari, Mauro Riccaboni, Charles Baker-Glenn
Life of this patent
Estimating the term…
Abstract
Compounds of formula (I) defined herein are both inhibitors of the phosphodiesterase 4 (PDE4) enzyme and muscarinic M3 receptor antagonists and are useful for the prevention and/or treatment of a disease of the respiratory tract characterized by airway obstruction.
Claims13
A compound represented by formula (I):
- wherein
- R1 is hydrogen, (C1-C4) alkyl, or —SO2(C1-C4)alkyl;
- R2 is aryl or a 5 to 11 membered heteroaryl, wherein said aryl or heteroaryl is optionally substituted by 1 to 3 groups at each occurrence independently selected from the group consisting of halogen, (C1-C4)haloalkyl, hydroxy, —SO2NR8R9, —CN, —NR10SO2R11, (C1-C4) alkyl, and (C1-C4) alkoxy, wherein said (C1-C4) alkyl or (C1-C4) alkoxy are optionally substituted by one (C3-C7) cycloalkyl group, and wherein
- R8 is hydrogen or (C1-C6) alkyl;
- R9 is hydrogen or (C1-C6) alkyl;
- R10 is hydrogen or (C1-C6) alkyl;
- R11 is hydrogen or (C1-C6 alkyl;
- Z is a bond or a divalent radical selected from the group consisting of —(CH2)m—, —S—, —S(O)—, —S(O2)—, a group —C(O)—, and a group [1]-(CH2)m—OC(O)-[2] wherein [1] and [2] represent, respectively the point of attachment of group Z to phenyl ring and to the nitrogen atom, and m is an integer ranging from 1 to 4;
- L1 is:
- a bond,
- —(CH2)p—,
- [3]-(CH2)p—O-[4]
- [3]-(CH2)p—NR10—(CH2)t-[4]
- [3]-(CH2)p—OC(O)-[4]
- [3]-(CH2)p—NR10C(O)-[4]
- [3]-(CH2)p—NR10S(O2)-[4] or
- [3]-(CH2)p—S(O2)—N(R10)-[4]
- wherein [3] and [4] represent, respectively the point of attachment of group L1 to the carbonyl group and to the phenyl ring, and wherein
- R10 is as described above,
- p is an integer ranging from 1 to 4 and
- t is an integer ranging from 1 to 4
- each R3 is independently hydrogen, halogen, (C1-C4) haloalkyl, hydroxy, aminocarbonyl, di-(C1-C4) alkylaminocarbonyl, —SO2NR12R13, —CN, —NR14SO2R15, —(CH2)m—NR14SO2R15—, (C1-C4) alkyl, or (C1-C4) alkoxy, wherein said (C1-C4) alkyl or (C1-C4) alkoxy are optionally substituted by one (C3-C7) cycloalkyl group, m is as described above and
- R12 is hydrogen or (C1-C6) alkyl;
- R13 is hydrogen or (C1-C6) alkyl;
- R14 is hydrogen or (C1-C6) alkyl;
- R15 is hydrogen or (C1-C6) alkyl;
- q is an integer ranging from 1 to 3;
- R4 and R5 are the same of different and are independently:
- H;
- (C3-C7) cycloalkylcarbonyl;
- (C1-C6) alkyl, optionally substituted by one or more substituents selected from (C3-C7) cycloalkyl and (C5-C7) cycloalkenyl;
- (C1-C6) haloalkyl;
- (C3-C7) cycloalkyl;
- (C5-C7) cycloalkenyl;
- (C2-C6) alkenyl;
- or
- (C2-C6) alkynyl;
- or R4 and R5, together with the interconnecting atoms, form a 2,2-difluoro-1,3-dioxolane ring of formula (r) fused to the phenyl moiety which bears groups —OR4 and —OR5, wherein asterisks indicate carbon atoms shared with said phenyl ring:
- each R6 is independently CN, NO2, CF3, or a halogen atom;
- n is 0 or an integer ranging from 1 to 3;
- A is a nitrogen containing group which is:
- a group (a) which is —(CH2)s—NR16R17 wherein s is an integer ranging from 1 to 4 and R16 and R17 are independently hydrogen or (C1-C4) alkyl;
- or
- a group (b) which is a saturated monocyclic, bicyclic or tricyclic heterocyclic ring system optionally substituted by one or two groups R18 which are at each occurrence independently selected from (C1-C4) alkyl and benzyl,
- or an N-oxide on the pyridine ring, a deuterated derivative, or a pharmaceutically acceptable salt thereof.
42 more elements
Dependencies are inferred from the claim text.