(2011/08/08)
α-propargylhomoterephthalic acid dimethyl ester
10-propargyl-10-deazaaminopterin dimethyl ester
4-(2-carboxy-1-(2,4-diaminopteridin-6-yl)pent-4-yn-2-yl)benzoic acid
methyl-4-(2-((2,4-diaminopteridin-6-yl)methyl)-1-methoxy-1-oxopent-4-yn-2-yl)benzoate
methyl 4-(2-methoxy-2-oxoethyl)benzoate