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Liu S, Gu H, Liang K, Wei Z, Li B, Tian Y, Li R, Zhang G, Liu S. Skeleton Synthesis of a Plant-Derived Radioprotective Alkaloid Born to Produce a Novel Fused Heterocycle. Molecules 2023; 28:molecules28093829. [PMID: 37175238 PMCID: PMC10179810 DOI: 10.3390/molecules28093829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/28/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
Alkaloids are a material treasure bestowed on humans by nature owing to their numerous biological activities. Orychophragine D, an alkaloid isolated from the seeds of Orychophragmus violaceus was identified as bearing a novel skeleton and proved to have an excellent radioprotective effect. Different from the common alkaloid structure, the main block of orychophragine D is constructed of an oxotriazine and an oxopiperazine, which are connected in parallel by a C-N bond. In this paper, a preparation method for the novel heterocycle skeleton of orychophragine D is proposed for the first time. N-Boc-L-serine was utilized as the original material to complete the preparation with 11 steps in a 13% overall yield. A hydroxyl group was established on the side chain of the skeleton as the reaction site for researchers to conduct further structural modification or derivatization.
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Affiliation(s)
- Sifan Liu
- Department of Pharmaceutical Science, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Huiling Gu
- Department of Pharmaceutical Science, Beijing Institute of Radiation Medicine, Beijing 100850, China
- School of Pharmacy, Henan University, Kaifeng 475001, China
| | - Kai Liang
- Department of Pharmaceutical Science, Beijing Institute of Radiation Medicine, Beijing 100850, China
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Zhenzhen Wei
- Department of Pharmaceutical Science, Beijing Institute of Radiation Medicine, Beijing 100850, China
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100022, China
| | - Bin Li
- Department of Pharmaceutical Science, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Ying Tian
- Department of Pharmaceutical Science, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Ruihong Li
- Department of Pharmaceutical Science, Beijing Institute of Radiation Medicine, Beijing 100850, China
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100022, China
| | - Guangjie Zhang
- Department of Pharmaceutical Science, Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Shuchen Liu
- Department of Pharmaceutical Science, Beijing Institute of Radiation Medicine, Beijing 100850, China
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