|
1
|
Chung JYL, Kassim AM, Simmons B, Davis TA, Song ZJ, Limanto J, Dalby SM, He CQ, Calabria R, Wright TJ, Campeau LC. Kilogram-Scale Synthesis of 2′-C-Methyl-arabino-Uridine from Uridine via Dynamic Selective Dipivaloylation. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00175] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- John Y. L. Chung
- Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Amude M. Kassim
- Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Bryon Simmons
- Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Tyler A. Davis
- Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Zhiguo J. Song
- Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - John Limanto
- Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Stephen M. Dalby
- Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Cyndi Q. He
- Computational & Structural Chemistry, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Ralph Calabria
- Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Timothy J. Wright
- Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Louis-Charles Campeau
- Process Research & Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| |
Collapse
|
|
2
|
Ding H, Li W, Ruan Z, Yang R, Mao Z, Xiao Q, Wu J. Concise total synthesis of two marine natural nucleosides: trachycladines A and B. Beilstein J Org Chem 2014; 10:1681-5. [PMID: 25161727 PMCID: PMC4142848 DOI: 10.3762/bjoc.10.176] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 06/26/2014] [Indexed: 12/20/2022] Open
Abstract
We report the first total synthesis of trachycladines A (10 steps, 34.2% overall yield) and B (11 steps, 35.0% overall yield) by using 5-deoxy-1,2,3-tri-O-acetyl-β-D-ribofuranose as the starting material. The critical step was the SnCl4 assisted regio- and steroselective deprotection of perbenzylated 1-O-methyl-5-deoxyribofuranose. The enzyme adenylate deaminase (EC 3.5.4.6) was successfully applied to the chemoenzymatic synthesis of trachycladines B.
Collapse
Affiliation(s)
- Haixin Ding
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang 330013, China
| | - Wei Li
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang 330013, China
| | - Zhizhong Ruan
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang 330013, China
| | - Ruchun Yang
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang 330013, China
| | - Zhijie Mao
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang 330013, China
| | - Qiang Xiao
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang 330013, China
| | - Jun Wu
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang 330013, China ; Marine Drugs Research Center, College of Pharmacy,Jinan University, Guangzhou 510632, China
| |
Collapse
|
|
3
|
Wang C, Ma X, Zhang J, Tang Q, Jiao W, Shao H. Methanesulfonic-Acid-Catalysed Ring Opening and Glycosylation of 1,2-(Acetylcyclopropane)-AnnulatedD-Lyxofuranose. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402037] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
|
4
|
Stereoselective facile synthesis of 2′-spiro pyrimidine pyranonucleosides via their key intermediate 2′-C-cyano analogues. Evaluation of their bioactivity. Carbohydr Res 2014; 383:50-7. [DOI: 10.1016/j.carres.2013.11.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Revised: 10/31/2013] [Accepted: 11/03/2013] [Indexed: 11/23/2022]
|
|
6
|
Belostotskii AM, Genizi E, Hassner A. Essential reactive intermediates in nucleoside chemistry: cyclonucleoside cations. Org Biomol Chem 2012; 10:6624-8. [PMID: 22805739 DOI: 10.1039/c2ob25868d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
DFT-based modeling as well as experimental examination of model keto nucleosides have revealed that high susceptibility of these compounds to acids is due to formation of intermediate cyclonucleoside cations of low energy. Theoretically established chemical structures of these previously overlooked intermediates explain the reaction courses for a cluster of nucleoside reactions.
Collapse
|