Catalysts function by providing an alternate reaction mechanism that has a lower activation energy than would be found in the absence of the catalyst. In some cases, the catalyzed mechanism may include additional steps.In a article, 138007-24-6, molcular formula is C10H19NO2, introducing its new discovery. category: piperidines
The invention provides a compound of formula (I) or a salt thereof: wherein R2 is H, C1-3alkyl, n-butyl, C1-2fluoroalkyl, cyclopropyl, cyclobutyl, (cyclopropyl)methyl-, ?CN, or ?CH2OH; R3 is inter alia optionally substituted C4-7cycloalkyl or an optionally substituted heterocyclic group (aa), (bb) or (cc); Ra is H, methyl or ethyl; Rb is H or methyl; R4 is H, methyl, ethyl, n-propyl, ?C(O)-Me, or ?C(O)?C1fluoroalkyl; and R5 is: ?C(O)?(CH2)n?Ar, ?C(O)-Het, ?C(O)?C1-6alkyl, ?C(O)?C1 fluoroalkyl, ?C(O)?(CH2)2?C(O)?NR15bNR15b, ?C(O)?CH2?C(O)?NR15bNR15b, ?C(O)?NR15b?(CH2)m1?Ar, ?C(O)?NR15b?Het, ?C(O)?NR15b?C1-6alkyl, ?C(O)?NR5aR5b, ?S(O)2?(CH2)m2?Ar, ?S(O)2-Het, ?S(O)2?C1-6alkyl, or ?CH2?Ar; or R4 and R5 taken together are ?(CH2)p1?, ?(CH2)2?X5?(CH2)2?, ?C(O)?(CH2)p2?, ?C(O)?N(R15)?(CH2)p3?; or NR4R5 is of sub-formula (y), (y1), (y2) or (y3). The invention provides the use of the compounds as inhibitors of phosphodiesterase type IV (PDE4) and/or for the treatment and/or prophylaxis of inflammatory and/or allergic diseases such as COPD and the like.
One of the oldest and most widely used commercial enzyme inhibitors is aspirin, category: piperidines, which selectively inhibits one of the enzymes involved in the synthesis of molecules that trigger inflammation. you can also check out more blogs about 138007-24-6
Reference：
Piperidine – Wikipedia,
Piperidine | C5H11513N – PubChem