Abstract
High-throughput parallel synthesis of library compounds for early drug discovery requires high-throughput analytical methods to confirm synthesis, identify reaction products, and determine purity. An ultrafast 1.0-min HPLC/UV/ELSD/MS method was developed and compared to our standard 2.5- and 5.0-min methods in order to determine if the faster method was appropriate to evaluate compound synthesis and determine purity. In addition to using standard test mixtures, a 400-member library produced by high-throughput parallel synthesis was used for comparing the various methods. Mass spectrometric detection was used for compound identification, while UV and ELSD data offered purity assessment. Compared to our longer separations, chromatographic separation achieved using the 1.0-min method was sufficient for compound evaluation and purity assessment. This ultrafast 1.0-min HPLC/UV/ELSD/MS method is expected to increase analytical throughput tremendously, provide important information faster, and reduce the overall cycle time from synthesis to screening.
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