Synthetic Route of 33024-60-1, Chemistry can be defined as the study of matter and the changes it undergoes. You¡¯ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology.33024-60-1, Name is Tetrahydro-2H-pyran-4-amine hydrochloride, molecular formula is C5H12ClNO. In a patent, introducing its new discovery.
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.
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Reference£º
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics