Friday, November 22, 2024 11/22/2024

Development of Efficient Carbon Carbon Bond Formations for Novel Se-, S-, and O-Heterocycle Synthesis

Award Number: R16GM145541
ORGANIZATION: NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

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NIH SuRE Project – Abstract Heterocycles account for more than 50% of all known organic compounds. Their rich activities in biological systems are important for pharmaceuticals and natural products. Among the top 200 brand name drugs, over 75% are heterocyclic compounds. In nature, heterocycles are active components for defense, communication, and reproduction. Low regioselectivities, low stereo-/enantioselectivities, lengthy synthetic sequences, and low overall yields in most multi-step syntheses make it extremely challenging to provide sufficient quantities of desired bioactive heterocycles for therapeutic purposes. This NIH SuRE proposal aims to develop and utilize highly selective metal catalyzed carbon carbon bond formation reactions that will lead to efficient synthesis of novel selenium, sulfur, and oxygen-containing heterocycles with rich biological activities. This proposal also aims to develop multicomponent coupling processes for rapid generation of functionality and complexity in heterocycles, a new selective merged asymmetric conjugate addition-acylation as well as a merged conjugate addition-oxidation strategy that will lead to the synthesis of new classes of bioactive selenium, sulfur-containing heterocycles. The proposed new C-C bond formations and multicomponent reactions will provide new opportunities for complex novel heterocycle synthesis including selenium- heterocycles. The metal-catalyzed conjugate addition of nucleophiles onto polyenic Michael acceptors is one of the most attractive and powerful C-C bond forming strategies for synthesis of relevant molecules, as it provides opportunity for sequential generation of two or more stereogenic centers in a straightforward fashion. The multicomponent reactions enabled by direct trapping of metal enolates could provide powerful transformations for the formation of multiple C-C bonds and chiral centers in a single pot. The resultant versatile heterocyclic subunits and trapping of the metal enolates in situ will provide excellent opportunities for new innovative approaches for novel complex heterocyle synthesis and drug discovery. Further elaboration of this chemistry will likely allow the first enantioselective synthesis of very important classes of heterocycles such as biselenoflavonoids, bithioflavonoids and bioactive biflavonoids, potential small molecule therapeutics for Alzheimer’s disease. This SuRE project is expected to significantly enhance and expand the research capacity towards a sustainable research excellence at WSSU, a HBCU.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2024 ( Subtotal = $195,082 )
2024	2024	WINSTON-SALEM STATE UNIVERSITY	601 S MARTIN LUTHER KING JR DR	WINSTON SALEM	NC	27110	FORSYTH	USA	Biomedical Research and Research Training	000	3	6/28/2024	NON-COMPETING CONTINUATION	$133,864
2024	2024	WINSTON-SALEM STATE UNIVERSITY	601 S MARTIN LUTHER KING JR DR	WINSTON SALEM	NC	27110	FORSYTH	USA	Biomedical Research and Research Training	001	3	7/1/2024	SUPPLEMENT FOR EXPANSION	$61,218
														Subtotal = $195,082

Issue Date FY: 2023 ( Subtotal = $133,559 )
2023	2023	WINSTON-SALEM STATE UNIVERSITY	601 S MARTIN LUTHER KING JR DR	WINSTON SALEM	NC	27110	FORSYTH	USA	Biomedical Research and Research Training	000	2	7/7/2023	NON-COMPETING CONTINUATION	$133,559
														Subtotal = $133,559

Issue Date FY: 2022 ( Subtotal = $128,147 )
2022	2022	WINSTON-SALEM STATE UNIVERSITY	601 S MARTIN LUTHER KING JR DR	WINSTON SALEM	NC	27110	FORSYTH	USA	Biomedical Research and Research Training	000	1	8/12/2022	NEW	$128,147
														Subtotal = $128,147

Grand Total All Awards = $456,788

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Development of Efficient Carbon Carbon Bond Formations for Novel Se-, S-, and O-Heterocycle Synthesis

Award Number: R16GM145541

ORGANIZATION: NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

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