(S)-2-{4-[(2,4-Diamino-pteridin-6-ylmethyl)-methyl-amino]-benzoylamino}-pentanedioic acid 1-(2,6-dichloro-benzyl) ester 5-hexadecyl ester
(S)-2-{4-[(2,4-Diamino-pteridin-6-ylmethyl)-methyl-amino]-benzoylamino}-pentanedioic acid 5-hexadecyl ester 1-(2-trimethylsilanyl-ethyl) ester
methotrexate γ-hexadecyl ester
α-<2-(trimethylsilyl)ethyl> γ-n-hexadecyl L-glutamate tosylate