Type 2 helper t cell-selective immune response inhibitors

A - Human Necessities – 61 – K

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Details

A61K 31/52 (2006.01) C07D 473/00 (2006.01) C07D 473/30 (2006.01) C07D 473/34 (2006.01)

Patent

CA 2315733

Type 2 helper T cell-selective immune response suppressors, immune response modulators and antiallergic agents containing purine derivatives represented by general formula (I) as the active ingredient wherein R2 represents H or hydrocarbyl; R6 represents amino mono- or disubstituted by OH, NH2 or hydrocarbyl; R8 represents OH, SH, acyloxy or hydrocarbyloxycarbonyloxy; and R9 represents hydrocarbyl, provided that in the hydrocarbyl represented by R2 and R9, -CH2- not directly bonded to the purine skeleton may be replaced by CO, SO2 , O or S and C-H not directly bonded to the purine skeleton may be replaced by N, C-halogeno or C-CN.

La présente invention concerne des suppresseurs de la réponse immunitaire sélectifs par rapport aux lymphocytes T auxiliaires de types 2, des modulateurs de la réponse immunitaire ainsi que des agents antiallergiques contenant comme principe actif des dérivés de la purine représentés par la formule générale (I), dans laquelle R<2> représente H ou hydrocarbyle, R<6> représente amino monosubstitué ou bisubstitué par OH, NH2 ou hydrocarbyle, R<8> représente OH, SH, acyloxy, ou hydrocarbyloxycarbonyloxy; R<9> représente hydrocarbyle, à condition que dans l'hydrocarbyle représenté par R<2> et R<9>, -CH2- qui est non directement lié au squelette de la purine peut être remplacé par CO, SO2, O ou S et C-H non directement lié au squelette de la purine peut être remplacé par N, C-halogeno ou C-CN.

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