1
|
Rincón JA, Navarro A, Nieves-Remacha MJ, Eugenio de Diego J, Ruble JC, de la Puente ML, Trigo MJ, Schaefer BA. Hybrid Flow-Batch Model for the Efficient Synthesis of 2-(Dimethylamino)-6-methylpyridin-4-ol. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.1c00264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Juan A. Rincón
- Centro de Investigación Lilly S.A.U., Alcobendas-Madrid 28108, Spain
| | - Antonio Navarro
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, United States
| | | | | | - J. Craig Ruble
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, United States
| | | | - María Jesús Trigo
- Centro de Investigación Lilly S.A.U., Alcobendas-Madrid 28108, Spain
| | - Brian A. Schaefer
- Eastman Chemical Company, 200 S. Wilcox Drive, Kingsport, Tennessee 37660, United States
| |
Collapse
|
2
|
Abstract
Azetidinium salts are important motifs in organic synthesis but are difficult to obtain due to extremely long synthetic protocols. Herein, a rapid continuous-flow process for the on-demand synthesis of azetidinium salts is described. In particular, the nucleophilic addition of secondary amines and the subsequent intramolecular N-cyclization have been investigated in batch and continuous-flow modes, exploring the effects of solvent type, temperature, reaction time, and amine substituent on the synthesis of azetidinium salts. This has enabled us to quickly identify optimal reaction conditions and obtain microkinetic parameters, verifying that the use of a flow reactor leads to a reduction of the activation energy for the epichlorohydrin aminolysis due to the better control of mass and heat transfer during reaction. This confirms the key role of continuous-flow technologies to affect the kinetics of a reaction and make synthetic protocols ultrarapid and more efficient.
Collapse
Affiliation(s)
- Alessandra Sivo
- Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, IT-20133 Milano, Italy
| | - Vincenzo Ruta
- Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, IT-20133 Milano, Italy
| | - Gianvito Vilé
- Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, IT-20133 Milano, Italy
| |
Collapse
|
3
|
Li B, Barnhart RW, Dion A, Guinness S, Happe A, Hayward CM, Kohrt J, Makowski T, Maloney M, Nelson JD, Nematalla A, McWilliams JC, Peng Z, Raggon J, Sagal J, Weisenburger GA, Bao D, Gonzalez M, Lu J, McLaws MD, Tao J, Wu B. Process Development of a Second Generation β-Amyloid-Cleaving Enzyme Inhibitor—Improving the Robustness of a Halogen-Metal Exchange Using Continuous Stirred-Tank Reactors. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00126] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Bryan Li
- Chemical Research & Development, Worldwide Research Development & Medical, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
- Chemical Research & Development La Jolla Laboratory, Worldwide Research Development & Medical, Pfizer Inc., Science Center Drive, San Diego, California 92121, United States
| | - Richard W. Barnhart
- Chemical Research & Development, Worldwide Research Development & Medical, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Amelie Dion
- Chemical Research & Development, Worldwide Research Development & Medical, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Steven Guinness
- Chemical Research & Development, Worldwide Research Development & Medical, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Alan Happe
- Chemical Research & Development Worldwide Research Development & Medical, Pfizer Inc., Ramsgate Road, Sandwich CT13 9ND, U.K
| | - Cheryl M. Hayward
- Chemical Research & Development, Worldwide Research Development & Medical, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Jeffrey Kohrt
- Chemical Research & Development, Worldwide Research Development & Medical, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Teresa Makowski
- Chemical Research & Development, Worldwide Research Development & Medical, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Mark Maloney
- Chemical Research & Development, Worldwide Research Development & Medical, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Jade D. Nelson
- Chemical Research & Development, Worldwide Research Development & Medical, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Asaad Nematalla
- Chemical Research & Development, Worldwide Research Development & Medical, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - J. Christopher McWilliams
- Chemical Research & Development, Worldwide Research Development & Medical, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Zhihui Peng
- Chemical Research & Development, Worldwide Research Development & Medical, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Jeffrey Raggon
- Chemical Research & Development, Worldwide Research Development & Medical, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - John Sagal
- Chemical Research & Development, Worldwide Research Development & Medical, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Gerald A. Weisenburger
- Chemical Research & Development, Worldwide Research Development & Medical, Pfizer Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Denghui Bao
- Asymchem Life Science Co. Limited, No. 71, 7th Street, TEDA, Tianjin 300457, China
| | - Miguel Gonzalez
- Asymchem Life Science Co. Limited, No. 71, 7th Street, TEDA, Tianjin 300457, China
| | - Jiangping Lu
- Asymchem Life Science Co. Limited, No. 71, 7th Street, TEDA, Tianjin 300457, China
| | - Mark D. McLaws
- Asymchem Life Science Co. Limited, No. 71, 7th Street, TEDA, Tianjin 300457, China
| | - Jian Tao
- Asymchem Life Science Co. Limited, No. 71, 7th Street, TEDA, Tianjin 300457, China
| | - Baolin Wu
- Asymchem Life Science Co. Limited, No. 71, 7th Street, TEDA, Tianjin 300457, China
| |
Collapse
|
4
|
Duan S, Feng X, Gonzalez M, Bader S, Hayward C, Ljubicic T, Lu J, Mustakis J, Maloney M, Rainville J, Zhang X. Developing a Multistep Continuous Manufacturing Process for (1R,2R)-2-Amino-1-methylcyclopentan-1-ol. Org Process Res Dev 2020. [DOI: 10.1021/acs.oprd.0c00405] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shengquan Duan
- Chemical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Xichun Feng
- Asymchem Life Science (Tianjin) Co., Ltd., No. 71, 7th Avenue, TEDA, Tianjin 300457, P. R. China
| | - Miguel Gonzalez
- Asymchem Inc., 600 Airport Blvd. Suite 1000, Morrisville, North Carolina 27516, United States
| | - Scott Bader
- Chemical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Cheryl Hayward
- Chemical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Tomislav Ljubicic
- Chemical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Jiangping Lu
- Asymchem Life Science (Tianjin) Co., Ltd., No. 71, 7th Avenue, TEDA, Tianjin 300457, P. R. China
| | - Jason Mustakis
- Chemical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Mark Maloney
- Chemical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Joseph Rainville
- Chemical Research and Development, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Xin Zhang
- Asymchem Life Science (Tianjin) Co., Ltd., No. 71, 7th Avenue, TEDA, Tianjin 300457, P. R. China
| |
Collapse
|