Heterocyclic compounds and antitumor drugs containing the...

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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Details

C544S112000, C544S114000

Reexamination Certificate

active

07153853

ABSTRACT:
The present invention relates to heterocyclic compounds represented by the formula Iwherein X represents nitrogen atom or CH; R1represents halogen atom or hydroxyl; R2represents hydrogen atom, hydroxyl or amino; R3represents morpholino (which may be substituted with one or two C1–C6alkyl), pyrrolidinyl (which may be substituted with hydroxy C1–C6alkyl) or NR6R7[R6represents C1–C6alkyl and R7represents piperidinyl (which may be substituted with C1–C6alkyl)]; R4and R5each represents hydrogen atom or C1–C6alkyl, with the proviso that R2is hydrogen atom and R3is pyrrolidinyl (which may be substituted with hydroxy C1–C6alkyl) when R1is hydroxyl

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patent: 2006/0009440 (2006-01-01), Kawashima et al.
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U.S. Appl. No. 10/532,245, filed Apr. 22, 2005, Kawashima et al.
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