126016-78-2Relevant academic research and scientific papers
A new route to 7-substituted derivatives of N-{4-[2-(2-amino-3,4-dihydro-4-oxo-7H-pyrrolo[2,3-d]pyrimidin-5-yl) -ethyl]benzoyl}-L-glutamic acid [ALIMTA (LY231514, MTA)]
Taylor,Liu
, p. 3726 - 3738 (2007/10/03)
Alkylation of various primary amines with crotyl bromide, followed by DMAP-promoted acylation with methyl malonyl chloride to 4 and then manganic triacetate dihydrate/cupric acetate induced radical cyclization, gave 1-substituted-4-vinyl-3-carbomethoxy-2-pyrrolidinones (5). Thiation to the thiolactams 6 and guanidine cyclization then gave a series of 2-amino-3,4-dihydro-4-oxo-5-vinyl-7-substituted pyrrolo[2,3-d]pyrimidines (7). Palladium-catalyzed C-C coupling with diethyl 4-iodobenzoylglutamate led in one step via an unexpected redox reaction to the diethyl esters 9 of a series of 7-substituted derivatives of ALIMTA (LY231514, MTA), from which the target analogues 10 were readily prepared by saponification. Attempted deprotection at position 7 was successful in only one case (9d, R = CH2C6H3(OMe)2 (-3′,4′), which resulted in a known pentultimate precursor (9, R = H) of ALIMTA. The 7-substituted derivatives 10 proved to be inactive in vitro as inhibitors of cell division.
SYNTHESIS OF LY288601, A 5,6-DIHYDROPYRROLOPYRIMIDINE BASED ANTIFOLATE COMPOUND RELATED TO LY231514
Barnett, Charles J.,Wilson Thomas M.
, p. 925 - 936 (2007/10/02)
An expeditious synthesis of LY288601 (2), the 5,6-dihydro analog of the pyrrolopyrimidine-based antifolate compound LY231514 (1a), is described.The synthesis proceeds in eight steps from tert-butyl 4-iodobenzoate and involves the elaboration of a 2
Intermediates, and processes thereto, for the preparation of 5,6-dihydropyrrolo[2,3-d]pyrimidines
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, (2008/06/13)
This invention relates to intermediates and processes thereto, for the preparation of 5,6-dihydropyrro[2,3-d]pyrimidines which are useful for the treatment of susceptible neoplasms
Pyrrolopyrimidine derivatives, their production and use
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, (2008/06/13)
A compound of the formula STR1 wherein the ring A is a pyrrole or pyrroline ring, X is an amino group or a hydroxyl group, Y is a hydrogen atom, an amino group or a hydroxyl group, R is a hydrogen atom, a fluorine atom, an alkyl group, an alkenyl group or an alkynyl group, --COOR1 and --COOR2 are independently carboxyl groups which may be esterified and n is an integer of 2 to 4, and R may be different in each of the n repeating units, and salts thereof have excellent antitumor effects, and can be used as antitumor agents in mammals.
