Ethynyl Estradiol-d4

Ethynyl Estradiol-d4 is the deuterium labeled Ethynyl Estradiol. Ethynyl Estradiol (17α-Ethynylestradiol;Ethynylestradiol) is an orally bio-active estrogen used in almost all modern formulations of combined oral contraceptive pills. Ethynyl Estradiol-d4 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated into drug molecules, largely as tracers for quantitation during the drug development process. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs^[1].

References:
[1]. Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019;53(2):211-216.
[2]. Djerassi C. Chemical birth of the pill. 1992. Am J Obstet Gynecol. 2006 Jan;194(1):290-8.

Ethynyl Estradiol-d4 是 Ethynyl Estradiol 的氘代物。Ethynyl Estradiol (17α-Ethynylestradiol;Ethynylestradiol) 是生物活性雌激素。Ethynyl Estradiol-d4 是一种点击化学试剂。它含有 Alkyne 基团，可以和含有 Azide 基团的分子发生铜催化的叠氮-炔环加成反应 (CuAAc)。