본문

서브메뉴

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 Meta...
Unlocking the Total Synthesis of Dragocins A-C: Adventures With Unusual Marine Hybrid Metabolites

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20250211151004
ISBN  
9798382789347
DDC  
547
저자명  
Smith, Brendyn Paul.
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  
Hybrid metabolic pathways
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.

미리보기

내보내기

chatGPT토론

Ai 추천 관련 도서


    신착도서 더보기
    최근 3년간 통계입니다.

    소장정보

    • 예약
    • 소재불명신고
    • 나의폴더
    • 우선정리요청
    • 비도서대출신청
    • 야간 도서대출신청
    소장자료
    등록번호 청구기호 소장처 대출가능여부 대출정보
    TF10745 전자도서 대출가능 마이폴더 부재도서신고 비도서대출신청 야간 도서대출신청

    * 대출중인 자료에 한하여 예약이 가능합니다. 예약을 원하시면 예약버튼을 클릭하십시오.

    해당 도서를 다른 이용자가 함께 대출한 도서

    관련 인기도서

    로그인 후 이용 가능합니다.