2,4-diamino pyrimidine compounds having anti-cell...

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Reexamination Certificate

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C544S323000

Reexamination Certificate

active

10771118

ABSTRACT:
A pyrimidine derivative of formula (I) wherein, for example, R1is hydrogen, (1–6C)alkyl, (3–5C)alkenyl or (3–5C)alkynyl; Q1and Q2are independently selected from phenyl, naphthyl, indanyl and 1,2,3,4-tetrahydronaphthyl; and one or both of Q1and Q2bears on any available carbon atom one substituent of formula (Ia) [provided that when present in Q1the substituent of formula (Ia) is not adjacent to the —NH— link]; wherein, for example, X is CH2, O, S or NH; Y is H or as defined for Z; Z is OH, SH, NH2, (1–4C)alkoxy, (1–4C)alkylthio, —NH(1–C)alkyl, —N[(1–4C)alkyl]2or —NH—(3–8C)cycloalkyl; n is 1, 2 or 3; m is 1, 2 or 3; and Q1and Q2may optionally bear other substituents selected, for example, from halogeno, (1–6C)alkyl, cyano and (2–4C)alkenyl; or a pharmaceutically-acceptable salt or in-vivo-hydrolyzable ester thereof; are useful as anti-cancer agents; and processes for heir manufacture and pharmaceutical compositions containing them are described

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