Fortschritte der Chemie organischer Naturstoffe / Progress in the Chemistry of Organic Natural Products

- Chemistry and Sources of Mono- and Bicyclic Sesquiterpenes from Ferula Species
I. Introduction
II. Biosynthetic Relationships
III. Extraction and Isolation
IV. Determination and Structural Types
V. Monocyclic Sesquiterpenes
VI. Bicyclic Sesquiterpenes
1. Bicyclic Alcohol Esters with a Hydroxy Group at C-10
2. Bicyclic Alcohol Esters with a Hydroxy Group at C-6
VII. Other Sesquiterpenoids from Ferula Species
VIII. Common Ester Side Chains in Sesquiterpenes from Ferula Species
References
The Chemistry of Melanins and Melanogenesis
I. Introduction
II. The Tangled Yarn of Melanin Research
A. The Early Studies
B. Melanogenesis in Vitro
C. Melanogenesis in Vivo
III. Note on Terminology
IV. Eumelanins
A. Protein Content
B. Isolation and Analysis
C. Synthetic Melanins
D. Free Radicals and Redox Properties
E. Carboxylic and Phenolic Groups
F. Chemical Degradation
G. Biomimetic and Biosynthetic Studies
1. Rearrangement of Dopachrome
a. Mechanism of Reaction
b. Regulatory Factors
2. Polymerization of Eumelanin Precursors
a. 5,6-Dihydroxyindole
b. 5,6-Dihydroxyindole-2-Carboxylic Acid
V. Pheomelanins and Related Pigments
A. Trichochromes
B. Gallopheomelanins
1. Isolation and General Properties
2. Gallopheomelanin-1
C. Biosynthetic Studies
1. The Pigment Precursors
2. Occurrence and Origin of Cysdopas
3. 1,4-Benzothiazinylalanines
VI. Overview of Reaction Pathways
- Abbreviations
- References
- Structure, Occurrence, Biosynthesis, Biological Activity, Synthesis, and Chemistry of Aromadendrane Sesquiterpenoids
1. Structure and Occurrence
2. Biosynthesis
3. Biological Activity
4. Total Syntheses of Aromadendranes
5. Aromadendranes as Starting Materials in the Synthesis of Sesquiterpenes
- References
- Author Index