Results 31 to 40 of about 174,911 (284)
Diatoms synthesize sterols by inclusion of animal and fungal genes in the plant pathway [PDF]
Diatoms are ubiquitous microalgae that have developed remarkable metabolic plasticity and gene diversification. Here we report the first elucidation of the complete biosynthesis of sterols in the lineage.
, Angela+7 more
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L-phenylseptin (L-Phes) and D-phenylseptin (D-Phes) are amphibian antimicrobial peptides isolated from the skin secretion of Hypsiboas punctatus. In the N-termini, L-Phes and D-Phes contain three consecutive phenylalanine residues, l-Phe-l-Phe-l-Phe and ...
Batsaikhan Mijiddorj+4 more
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[1,3]/[1,4]-Sulfur atom migration in β-hydroxyalkylphosphine sulfides
β-Hydroxyalkylphosphine sulfides undergo [1,3]- or [1,4]-sulfur atom phosphorus-to-carbon migration in the presence of Lewis or Brønsted acids. The direction of sulfur atom migration depends on the type of acid used for the reaction. In the presence of a
Katarzyna Włodarczyk+2 more
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2,5-diketopiperazines (DKPs) are cyclic dipeptides ubiquitously found in nature. In particular, cyclo(Phe-Pro), cyclo(Leu-Pro), and cyclo(Val-Pro) are frequently detected in many microbial cultures.
Alison Domzalski+6 more
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The Stereochemistry of Indigo. [PDF]
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Falk, K. George, Nelson, J. M.
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Ortho‐Quinone Methide Driven Synthesis of New O,N‐ or N,N‐Heterocycles
To synthesize functionalized Mannich bases that can serve two different types of ortho‐quinone methide (o‐QM) intermediates, 2‐naphthol and 6‐hydroxyquinoline were reacted with salicylic aldehyde in the presence of morpholine.
Dr. István Szatmári+5 more
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Organotin(IV) Dithiocarbamate Complexes: Chemistry and Biological Activity
Significant attention has been given to organotin(IV) dithiocabamate compounds in recent times. This is due to their ability to stabilize specific stereochemistry in their complexes, and their diverse application in agriculture, biology, catalysis and as
Jerry O. Adeyemi, Damian C. Onwudiwe
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The Metallacyclopentane-Olefin Interchange Reaction [PDF]
Tris(triphenylphosphine)tetramethylenenickel(II) and biscyclopentadienyltetramethylenetitanium, prepared from the reaction of a 1,4-dilithiobutane and the transition metal dihalides react with olefins to produce substituted metallacyclopentanes; the ...
Grubbs, Robert H., Miyashita, Akira
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Mechanism-based Enzyme Inactivators of Phytosterol Biosynthesis
Current progress on the mechanism and substrate recognition by sterol methyl transferase (SMT), the role of mechanism-based inactivators, other inhibitors of SMT action to probe catalysis and phytosterol synthesis is reported.
W. David Nes+8 more
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