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Wleklinski M, Carpenter PM, Dykstra KD, Donofrio A, Nowak T, Krska SW, Ferguson RD. Parallel purification of microscale libraries via automated solid phase extraction. SLAS Technol 2024; 29:100126. [PMID: 38423211 DOI: 10.1016/j.slast.2024.100126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/30/2024] [Accepted: 02/25/2024] [Indexed: 03/02/2024]
Abstract
High-throughput experimentation (HTE) has become more widely utilized in drug discovery for rapid reaction optimization and generation of large synthetic compound arrays. While this has accelerated medicinal chemistry design, make, test (DMT) iterations, the bottleneck of purification persists, consuming time and resources. Herein we describe a general parallel purification approach based on solid phase extraction (SPE) that provides a more efficient and sustainable workflow producing compound libraries with significantly upgraded purity. This robust, user-friendly workflow is fully automated and integrated with HTE library synthesis, as demonstrated by its application to a diverse parallel library compound array generated via amide-bond coupling in HTE microscale format.
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Affiliation(s)
- Michael Wleklinski
- Department of Discovery Chemistry, Merck & Co., Inc., Rahway, NJ 07065, USA
| | - Paige M Carpenter
- Department of Discovery Chemistry, Merck & Co., Inc., Rahway, NJ 07065, USA
| | - Kevin D Dykstra
- Department of Discovery Chemistry, Merck & Co., Inc., Rahway, NJ 07065, USA
| | - Anthony Donofrio
- Department of Discovery Chemistry, Merck & Co., Inc., Rahway, NJ 07065, USA
| | - Timothy Nowak
- Department of Analytical Research & Development, Merck & Co., Inc., Rahway, NJ 07065, USA
| | - Shane W Krska
- Department of Discovery Chemistry, Merck & Co., Inc., Rahway, NJ 07065, USA
| | - Ronald D Ferguson
- Department of Discovery Chemistry, Merck & Co., Inc., Rahway, NJ 07065, USA.
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Chen WA, Li HY, Sayyad A, Huang CY, Cheng WC. Synthesis of Nitrone-derived Pyrrolidine Scaffolds and Their Combinatorial Libraries to Develop Selective α-l-Rhamnosidase Inhibitors. Chem Asian J 2022; 17:e202200172. [PMID: 35535638 DOI: 10.1002/asia.202200172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 04/28/2022] [Indexed: 11/06/2022]
Abstract
A general and flexible approach toward the development of α-l-rhamnosidase (α-l-Rha-ase) inhibitors is described. Five enantiopure poly-substituted pyrrolidine-based scaffolds bearing the C1-aminomethyl moiety were designed and synthesized from five-membered cyclic nitrones. Each structurally diversified amide library of these scaffolds was rapidly generated via combinatorial parallel synthesis and applied for in-situ inhibition study against α-l-Rha-ase, allowing us to efficiently identify new inhibition hits. Surprisingly, all promising inhibitors are derived from the same scaffold 3. Among them, the most potent and selective inhibitor is pyrrolidine 19 with Ki =0.24 μM, approximately 24-fold more potent than the reference compound DAA (Ki =5.7 μM). It is the first study to comprehensively prepare pyrrolidine-based scaffolds and libraries for inhibition study against α-l-Rha-ase.
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Affiliation(s)
- Wei-An Chen
- Genomics Research Centre, Academia Sinica, 128, Section 2, Academia Road, 11529, Taipei, Taiwan
| | - Huang-Yi Li
- Genomics Research Centre, Academia Sinica, 128, Section 2, Academia Road, 11529, Taipei, Taiwan
| | - Ashik Sayyad
- Genomics Research Centre, Academia Sinica, 128, Section 2, Academia Road, 11529, Taipei, Taiwan
| | - Chun-Yen Huang
- Genomics Research Centre, Academia Sinica, 128, Section 2, Academia Road, 11529, Taipei, Taiwan
| | - Wei-Chieh Cheng
- Genomics Research Centre, Academia Sinica, 128, Section 2, Academia Road, 11529, Taipei, Taiwan
- Department of Chemistry, National Cheng-Kung University, 1, University Road, 701, Tainan, Taiwan
- Department of Applied Chemistry, National Chiayi University, 300, Xuefu Rd., East Dist., 600, Chiayi, Taiwan
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, 100 Shih-Chuan 1st Rd., 807, Kaohsiung, Taiwan
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