52.2
[]. L F Hennequin, et al. Quinazoline antifolates thymidylate synthase inhibitors: lipophilic analogues with modification to the C2-methyl substituent. J Med Chem. 996 Feb 2;9():695-704.
H5-H9-H5
P26-P264-P27-P280-P02+P52-P04+P40-P62+P64-P405-P50
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