Azetidinone derivatives for the treatment of hcmv infections

C - Chemistry – Metallurgy – 07 – D

Patent

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C07D 205/08 (2006.01) A61K 31/395 (2006.01) C07D 401/06 (2006.01) C07D 401/12 (2006.01) C07D 403/06 (2006.01) C07D 405/06 (2006.01) C07D 405/12 (2006.01) C07D 409/06 (2006.01) C07D 413/06 (2006.01) C07D 417/06 (2006.01)

Patent

CA 2301543

A compound of formula I (see formula I) wherein R1 is hydrogen, methyl, ethyl, methoxy or methylthio; R2 and R3 each independently is hydrogen or lower alkyl; R4 is hydrogen, lower alkyl, methoxy, ethoxy or benzyloxy; R5 is lower alkyl, lower cycloalkyl, (CH2)m C(O)OR6 wherein m is the integer 1 or 2 and R6 is lower alkyl, phenyl optionally substituted; optionally Het or Het(lower alkyl); or R4 and R5 together with the nitrogen atom to which they are attached form a nitrogen containing ring optionally substituted with C(O)O-benzyl or with phenyl optionally substituted with C(O)OR7 wherein R7 is lower alkyl or (lower alkyl)phenyl; and Z is lower alkyl or optionally substituted phenyl or Het; with the proviso that when Z is (CH2)p-(Het), then R2 and R3 each is hydrogen; or a therapeutically acceptable acid addition salt thereof is described. These compounds are useful as inhibitors of cytomegalovirus infection in a mammal.

L'invention concerne un composé de formule (I) dans laquelle R1 désigne un hydrogène, méthyle, éthyle, méthoxy ou méthylthio; R2 et R3, pris indépendamment, désignent l'hydrogène ou un alkyle C1-3; R4 désigne l'hydrogène, un alkyle inférieur, méthoxy, éthoxy ou benzyloxy; R5 désigne un alkyle inférieur, cycloalkyle inférieur, (CH2)mC(O)OR6 où m désigne le nombre entier 1 ou 2 et R6 désigne un alkyle inférieur, phényle éventuellement substitué; éventuellement Het ou Het(alkyle inférieur); ou R4 et R5 pris ensemble avec l'atome d'azote auquel ils sont liés forment un cycle renfermant un azote éventuellement substitué par C(O)O-benzyle ou par phényle éventuellement substitué par C(O)OR7 où R7 désigne un alkyle inférieur ou (alkyle inférieur)phényle; et Z désigne un alkyle inférieur ou éventuellement phényle substitué ou Het; à condition que lorsque Z désigne (CH2)p-(Het), R2 et R3 désignent chacun un hydrogène; ou un de ses sels d'addition d'acide thérapeutiquement acceptable.

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