Project description
Designing new heterocyclic rings for use in medicinal chemistry
Funded under the Marie Skłodowska-Curie Actions programme, the PHOTOLITH project plans to develop new photochemical reactions involving conjugated anions with lithium counterions (organolithiums and enolates). The goal is to construct functionalised, fused heterocyclic frameworks for use in medicinal chemistry. N-Allyl/N-benzyllithiums tethered to aromatic and heteroaromatic carboxamides will be employed in dearomatising cyclisations for constructing partially saturated fused ring systems and generating extended lithium enolates. Visible light radiation at a low temperature will induce a series of photochemical rearrangements, delivering demanding products in terms of structure that will contain various heterocycles and hetero-fused skeletons based on norcaradienes, cycloheptatrienes and cyclic ketones.
Objective
We propose to develop new photochemical reactions of conjugated anions with lithium counterions (organolithiums and enolates) to construct functionalized, fused heterocyclic frameworks of use in medicinal chemistry development. N-Allyl/N-benzyllithiums tethered to aromatic and heteroaromatic carboxamides will be employed in dearomatizing cyclizations for the construction of partially saturated fused ring systems, generating extended lithium enolates. Irradiation with visible light at low temperature will induce a series of photochemical rearrangements, delivering – in an operationally simple way - structurally demanding unusual products containing various heterocycles and hetero-fused skeletons based on norcaradienes, cycloheptatrienes, and cyclic ketones. Trapping the reactive cyclopropane units of the products with dipolarophiles such alkynes and olefins will extend the method to dearomatized polycycles via a [3+2] cycloaddition strategy. The method will then be extended from enolates to coloured, conjugated organolithiums more generally, promoting an electron from the HOMO (the C–Li bond of metalated carboxamides) to a new higher energy SOMO. This excited state takes the form of an anion-diradical which may be expected to undergo further interesting inter- or intramolecular reactions to furnish biologically relevant structures.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences chemical sciences organic chemistry ketones
- medical and health sciences basic medicine medicinal chemistry
- natural sciences chemical sciences inorganic chemistry alkali metals
- natural sciences chemical sciences physical chemistry photochemistry
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions
MAIN PROGRAMME
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H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) H2020-MSCA-IF-2020
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
BS8 1QU BRISTOL
United Kingdom
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.