A simple method for the small scale synthesis and solid-phase extraction purification of steroid sulfates

Area of Science:

• Analytical Chemistry
• Biochemistry
• Organic Chemistry

Background:

• Steroid sulfates are vital steroid metabolites with increasing importance in anti-doping, agricultural residue detection, and medicine.
• Limited availability of steroid sulfate reference materials hinders analytical method development.

Purpose of the Study:

• To develop simple, rapid protocols for synthesizing and purifying steroid sulfates suitable for analytical laboratories.
• To address the scarcity of steroid sulfate reference materials.

Main Methods:

• Utilized solid-phase extraction (SPE) for purification, a standard laboratory technique.
• Synthesized and characterized sulfate conjugates of sixteen diverse steroid compounds.
• Included previously unreported sulfate conjugates of designer steroids: furazadrol, isofurazadrol, and trenazone.

Main Results:

• Successfully prepared sixteen steroid sulfates with varied substitution patterns.
• Provided structural characterization data, including NMR and mass spectra, for all synthesized steroid sulfates.
• Demonstrated small-scale synthesis feasibility by sulfating 1μg of testosterone, monitored by LC-MS.

Conclusions:

• Developed accessible protocols for steroid sulfate synthesis and purification using SPE.
• Expanded the availability of steroid sulfate reference materials, including novel designer steroid conjugates.
• Facilitated advancements in analytical methods for steroid sulfate detection and quantification.