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Brown MS, Caporello MA, Goetz AE, Johnson AM, Jones KN, Knopf KM, Kulkarni SA, Lee T, Li B, Lu CV, Magano J, Puchlopek-Dermenci ALA, Reyes GP, Ruggeri SG, Wei L, Weisenburger GA, Wisdom RA, Zhang M. Streamlined Synthesis of a Bicyclic Amine Moiety Using an Enzymatic Amidation and Identification of a Novel Solid Form. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Maria S. Brown
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Michaella A. Caporello
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Adam E. Goetz
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Amber M. Johnson
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Kris N. Jones
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Kevin M. Knopf
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Samir A. Kulkarni
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Taegyo Lee
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Bryan Li
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Cuong V. Lu
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Javier Magano
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Angela L. A. Puchlopek-Dermenci
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Giselle P. Reyes
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Sally Gut Ruggeri
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Lulin Wei
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Gerald A. Weisenburger
- Chemical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Richard A. Wisdom
- Euticals GmbH, Industriepark
Höchst, D 569, 65926 Frankfurt am Main, Germany
| | - Mengtan Zhang
- Analytical Research and Development, Pfizer Worldwide Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
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Gao D, Penno C, Wünsch B. Rigid Scaffolds: Synthesis of 2,6-Bridged Piperazines with Functional Groups in all three Bridges. ChemistryOpen 2020; 9:874-889. [PMID: 32884883 PMCID: PMC7450790 DOI: 10.1002/open.202000188] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/06/2020] [Indexed: 11/10/2022] Open
Abstract
The activity of pharmacologically active compounds can be increased by presenting a drug in a defined conformation, which fits exactly into the binding pocket of its target. Herein, the piperazine scaffold was conformationally restricted by substituted C2- or C3-bridges across the 2- and 6-position. At first, a three-step, one-pot procedure was developed to obtain reproducibly piperazine-2,6-diones with various substituents at the N-atoms in high yields. Three strategies for bridging of piperazine-2,6-diones were pursued: 1. The bicyclic mixed ketals 8-benzyl-6-ethoxy-3-(4-methoxybenzyl)-6-(trimethylsilyloxy)-3,8-diazabicyclo[3.2.1]octane-2,4-diones were prepared by Dieckmann analogous cyclization of 2-(3,5-dioxopiperazin-2-yl)acetates. 2. Stepwise allylation, hydroboration and oxidation of piperazine-2,6-diones led to 3-(3,5-dioxopiperazin-2-yl)propionaldehydes. Whereas reaction of such an aldehyde with base provided the bicyclic alcohol 9-benzyl-6-hydroxy-3-(4-methoxybenzyl)-3,9-diazabicyclo[3.3.1]nonane-2,4-dione in only 10 % yield, the corresponding sulfinylimines reacted with base to give N-(2,4-dioxo-3,9-diazabicyclo[3.3.1]nonan-6-yl)-2-methylpropane-2-sulfinamides in >66 % yield. 3. Transformation of a piperazine-2,6-dione with 1,4-dibromobut-2-ene and 3-halo-2-halomethylprop-1-enes provided 3,8-diazabicyclo[3.2.1]octane-2,4-dione and 3,9-diazabicyclo[3.3.1]nonane-2,4-dione with a vinyl group at the C2- or a methylene group at the C3-bridge, respectively. Since bridging via sulfinylimines and the one-pot bridging with 3-bromo-2-bromomethylprop-1-ene gave promising yields, these strategies will be exploited for the synthesis of novel receptor ligands bearing various substituents in a defined orientation at the carbon bridge.
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Affiliation(s)
- Donglin Gao
- Institut für Pharmazeutische und Medizinische Chemie der WestfälischenWilhelms-Universität MünsterCorrensstraße 4848149MünsterGermany
| | - Christian Penno
- Institut für Pharmazeutische und Medizinische Chemie der WestfälischenWilhelms-Universität MünsterCorrensstraße 4848149MünsterGermany
| | - Bernhard Wünsch
- Institut für Pharmazeutische und Medizinische Chemie der WestfälischenWilhelms-Universität MünsterCorrensstraße 4848149MünsterGermany
- Cells-in-Motion Cluster of Excellence (EXC 1003 – CiM)Westfälische Wilhelms-Universität Münster48149MünsterGermany
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Affiliation(s)
- Oleksandr O. Grygorenko
- Kyiv National Taras Shevchenko University, Volodymyrska Street, 64, Kyiv 01601, Ukraine
- Enamine Ltd., Alexandra Matrosova Street, 23, Kyiv 01103, Ukraine
| | - Dmytro S. Radchenko
- Kyiv National Taras Shevchenko University, Volodymyrska Street, 64, Kyiv 01601, Ukraine
- Enamine Ltd., Alexandra Matrosova Street, 23, Kyiv 01103, Ukraine
| | | | - Andrey A. Tolmachev
- Kyiv National Taras Shevchenko University, Volodymyrska Street, 64, Kyiv 01601, Ukraine
- Enamine Ltd., Alexandra Matrosova Street, 23, Kyiv 01103, Ukraine
| | - Igor V. Komarov
- Kyiv National Taras Shevchenko University, Volodymyrska Street, 64, Kyiv 01601, Ukraine
- Enamine Ltd., Alexandra Matrosova Street, 23, Kyiv 01103, Ukraine
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