The long-term objective of this research program is to advance the practice of complex molecule synthesis. Special emphasis is placed on natural products that contain nitrogen since an unusually large number of pharmacologically active compounds incorporate this element within their structure. Despite the many advances in organic synthesis in the past 20th century the efficient and economical synthesis of complex natural products remains a challenging endeavor. Our plan is to introduce new inexpensive building blocks to the field of organic synthesis for use in asymmetric synthesis of nitrogen heterocycles. These building blocks would expedite the chemical synthesis of the rare marine alkaloid upenamide, the stemona alkaloids and 2-substituted piperidine alkaloids. We also present a plan for the synthesis of Iomaiviticins A and B, secondary metabolites isolated from fermentation of a marine derived actinomycetes. Lomaiviticins A and B are potent antibiotics against Gram-positive bacteria Staphylococcus aureus and Enterococcus faecium (MIC 6-25 ng/spot). An unusual structural feature of the Iomaiviticins is the incorporation of two diazo groups within their structure.

Agency
National Institute of Health (NIH)
Institute
National Institute of General Medical Sciences (NIGMS)
Type
Research Project (R01)
Project #
1R01GM067726-01A1
Application #
6720884
Study Section
Medicinal Chemistry Study Section (MCHA)
Program Officer
Schwab, John M
Project Start
2004-01-01
Project End
2004-08-31
Budget Start
2004-01-01
Budget End
2004-08-31
Support Year
1
Fiscal Year
2004
Total Cost
$119,512
Indirect Cost
Name
Texas A&M University
Department
Chemistry
Type
Schools of Arts and Sciences
DUNS #
078592789
City
College Station
State
TX
Country
United States
Zip Code
77845
Smith, Brian J; Sulikowski, Gary A (2010) Total synthesis of (+/-)-haliclonacyclamine C. Angew Chem Int Ed Engl 49:1599-602
Zhang, Weidong; Baranczak, Aleksandra; Sulikowski, Gary A (2008) Stereocontrolled assembly of the C3/C3'dideoxy core of lomaiviticin A/B and congeners. Org Lett 10:1939-41
Luo, Zhushou; Peplowski, Katherine; Sulikowski, Gary A (2007) Formation of the BC ring system of upenamide via a Staudinger/aza-Wittig reaction. Org Lett 9:5051-4
Doroh, Brandon; Sulikowski, Gary A (2006) Progress toward the total synthesis of Bielschowskysin: a stereoselective [2+2] photocycloaddition. Org Lett 8:903-6
Kiewel, Kurt; Luo, Zhushou; Sulikowski, Gary A (2005) Stereocontrolled synthesis of the DE ring system of the marine alkaloid upenamide. Org Lett 7:5163-5