[EN] COMPOUNDS USEFUL AS ANTIPROLIFERATIVE AGENTS AND GARFT INHIBITORS [FR] COMPOSES UTILES COMME AGENTS ANTIPROLIFERATIFS ET INHIBITEURS DE L'ENZYME GLYCINAMIDE RIBONUCLEOTIDE FORMYLE TRANSFERASE (GARFT)
[EN] COMPOUNDS USEFUL AS ANTIPROLIFERATIVE AGENTS AND GARFT INHIBITORS [FR] COMPOSES UTILES COMME AGENTS ANTIPROLIFERATIFS ET INHIBITEURS DE L'ENZYME GLYCINAMIDE RIBONUCLEOTIDE FORMYLE TRANSFERASE (GARFT)
Convergent processes for the synthesis of a GARFT inhibitor containing a methyl substituted thiophene core and intermediates therefor
申请人:AGOURON PHARMACEUTICALS, INC.
公开号:US20040266796A1
公开(公告)日:2004-12-30
The invention relates to processes for the preparation of a GARFT inhibitor containing a methyl substituted thiophene core having the following structure:
1
wherein each of R
1
and R
2
are independently a hydrogen atom or a moiety that together with the attached CO
2
forms a readily hydrolyzable ester group; from an intermediate of the formula
2
wherein R
3
is a moiety that together with the attached CO
2
forms a readily hydrolyzable ester group;
Pg
1
is an amino protecting group;
R
4
is H;
or Pg
1
can optionally be taken together with R
4
and the nitrogen to which Pg
1
and R
4
are attached to form (i) an imine; or (ii) a fused or bridged bicyclic ring or a spirocyclic ring, wherein said ring is saturated and contains from 5 to 12 carbon atoms in which up to 2 carbon atoms are optionally replaced with a hetero moiety selected from O, S(O)
j
wherein j is an integer from 0 to 2, and —NR
8
—, provided that two O atoms, two S(O)
j
moieties, or an O atom and a S(O)
j
moiety are not attached directly to each other;
R
5
is selected from the group consisting of —C≡C— and —CH═CH—; and
R
8
is independently H or C
1
-C
6
alkyl;
to form the compound of the formula (I) that is optically pure; and to processes for preparing intermediates thereof.
Process for the preparation of fused pyridine compounds
申请人:The Trustees of Princeton University
公开号:US04818819A1
公开(公告)日:1989-04-04
2-Amino-4-hydroxy-6-[2-(4-carboxyphenyl)alk-1-en-1-yl]pyrido[2,3,-d]pyrimid ines and 2-amino-4-hydroxy-6-[2-(4-carboxyphenyl)alk-1-yn-1-yl]pyrido[2,3-d]pyrimid ines are prepared through the reaction of a haloaromatic compound and an unsaturated compound in the presence of a palladium catalyst. The products are chemical intermediates for the preparation of antineoplastic agents. A typical embodiment is the reaction of a protected 2-amino-4-hydroxy-6-ethynylpyrido[2,3-d]pyrimidine and an ester of 4-iodobenzoic acid.
2-Amino-4-hydroxy-6-[2-(4-carboxyphenyl)alk-1-en-1-yl]pyrido[2,3,-d]pyrimid ines and 2-amino-4-hydroxy-6-[2-(4-carboxyphenyl)alk-1-yn-1-yl]pyrido[2,3-d]pyrimid ines are prepared through the reaction of a halo-aromatic compound and an unsaturated compound in the prosence of a palladium catalyst. The products are chemical intermediates for the preparation of antineo-plastic agents. A typical embodiment is the reaction of a protected 2-amino-4-hydroxy-6-ethynylpyrido[2,3-d]pyrimidine and an ester of 4-iodobenzoic acid.