서브메뉴
검색
Unlocking the Total Synthesis of Dragocins A-C: Adventures With Unusual Marine Hybrid Metabolites
Unlocking the Total Synthesis of Dragocins A-C: Adventures With Unusual Marine Hybrid Metabolites
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211151004
- ISBN
- 9798382789347
- DDC
- 547
- 서명/저자
- Unlocking the Total Synthesis of Dragocins A-C: Adventures With Unusual Marine Hybrid Metabolites
- 발행사항
- [Sl] : The Scripps Research Institute, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 252 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-12, Section: B.
- 주기사항
- Advisor: Baran, Phil S.
- 학위논문주기
- Thesis (Ph.D.)--The Scripps Research Institute, 2024.
- 초록/해제
- 요약Natural products that arise from hybrid metabolic pathways offer a unique and exciting opportunity for total synthesis and often result in compelling synthetic campaigns. The dragocin family of natural products represent a peculiar class of these types of secondary metabolites and feature multiple rare or even completely unprecedented structural motifs. Described in this dissertation is a brief background of these intriguing structures along with the strategies that were explored en route to these natural products in five separate chapters. Notably, the approaches described herein represent the first reported synthetic forays into these marine-derived compounds and may inform any future work on these structures or related molecules.Chapter 1 will introduce the dragocins, the synthesis of the only related natural product, AB3217-A, along with preliminary studies towards the preparation of the densely functionalized pyrrolidine found in the dragocins. In chapter 2, [3+2] cycloaddition strategies will be presented, which will feature both azomethine ylide and nitrone synthons along with a discussion of key roadblocks. Chapter 3 will focus on an approach which leveraged an enantioselective pyrrole dearomatization, giving way to the first advanced intermediate which enabled exploration of 9-membered ring formation via an unsuccessful intramolecular glycosylation strategy. In chapter 4, a dearomative furan-based strategy will be presented, which was also unfortunately met with failure. Finally, the first successful approach towards the key 9-membered skeleton and a failed late-stage C-H oxidation strategy will be found in chapter 5. Additionally found in this chapter will be the final successful approach towards these metabolites, which hinged upon a key decarboxylative chlorination of an intermediate which was constructed from an unprecedented intramolecular electrochemical cyclization/etherification event. A brief discussion of these natural products acting as potential covalently reactive compounds will conclude this dissertation.
- 일반주제명
- Organic chemistry
- 일반주제명
- Chemistry
- 일반주제명
- Biochemistry
- 키워드
- Natural products
- 키워드
- Dragocin family
- 키워드
- Dragocins
- 기타저자
- The Scripps Research Institute Chemistry
- 기본자료저록
- Dissertations Abstracts International. 85-12B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008250123s2024 us c eng d■001000017160361
■00520250211151004
■006m o d
■007cr#unu||||||||
■020 ▼a9798382789347
■035 ▼a(MiAaPQ)AAI30994491
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a547
■1001 ▼aSmith, Brendyn Paul.
■24510▼aUnlocking the Total Synthesis of Dragocins A-C: Adventures With Unusual Marine Hybrid Metabolites
■260 ▼a[Sl]▼bThe Scripps Research Institute▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a252 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-12, Section: B.
■500 ▼aAdvisor: Baran, Phil S.
■5021 ▼aThesis (Ph.D.)--The Scripps Research Institute, 2024.
■520 ▼aNatural products that arise from hybrid metabolic pathways offer a unique and exciting opportunity for total synthesis and often result in compelling synthetic campaigns. The dragocin family of natural products represent a peculiar class of these types of secondary metabolites and feature multiple rare or even completely unprecedented structural motifs. Described in this dissertation is a brief background of these intriguing structures along with the strategies that were explored en route to these natural products in five separate chapters. Notably, the approaches described herein represent the first reported synthetic forays into these marine-derived compounds and may inform any future work on these structures or related molecules.Chapter 1 will introduce the dragocins, the synthesis of the only related natural product, AB3217-A, along with preliminary studies towards the preparation of the densely functionalized pyrrolidine found in the dragocins. In chapter 2, [3+2] cycloaddition strategies will be presented, which will feature both azomethine ylide and nitrone synthons along with a discussion of key roadblocks. Chapter 3 will focus on an approach which leveraged an enantioselective pyrrole dearomatization, giving way to the first advanced intermediate which enabled exploration of 9-membered ring formation via an unsuccessful intramolecular glycosylation strategy. In chapter 4, a dearomative furan-based strategy will be presented, which was also unfortunately met with failure. Finally, the first successful approach towards the key 9-membered skeleton and a failed late-stage C-H oxidation strategy will be found in chapter 5. Additionally found in this chapter will be the final successful approach towards these metabolites, which hinged upon a key decarboxylative chlorination of an intermediate which was constructed from an unprecedented intramolecular electrochemical cyclization/etherification event. A brief discussion of these natural products acting as potential covalently reactive compounds will conclude this dissertation.
■590 ▼aSchool code: 1179.
■650 4▼aOrganic chemistry
■650 4▼aChemistry
■650 4▼aBiochemistry
■653 ▼aNatural products
■653 ▼aDragocin family
■653 ▼aHybrid metabolic pathways
■653 ▼aDragocins
■690 ▼a0490
■690 ▼a0487
■690 ▼a0485
■71020▼aThe Scripps Research Institute▼bChemistry.
■7730 ▼tDissertations Abstracts International▼g85-12B.
■790 ▼a1179
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17160361▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


