N-acetyl-L-cysteine is an N-acetyl-L-amino acid that is the N-acetylated derivative of the natural amino acid L-cysteine. It has a role as an antiinfective agent, an antioxidant, an antiviral drug, an antidote to paracetamol poisoning, a vulnerary, a mucolytic, a human metabolite, a radical scavenger, a ferroptosis inhibitor and a geroprotector. It is a L-cysteine derivative, an acetylcysteine and a N-acetyl-L-amino acid. It is a conjugate acid of a N-acetyl-L-cysteinate.
Concentration of N-acetylcysteine in the aqueous phase with time during a normal peroxidation experiment using antioxidant 16a.
Aniline is a clear to slightly yellow liquid with a characteristic odor. It does not readily evaporate at room temperature.
(A) Ligation of AOB to phage-displayed aldehydes is accelerated by aniline, but preincubation of phage with aniline in the absence of AOB leads to rapid loss of aldehyde and loss of reactivity toward AOB. (B) In anilinium acetate, pH 4.7, the aldehyde disappears with t1/2 ∼40 min; however, aldehydes alone are stable at the same pH in sodium acetate buffer.
Structures of coronatine (+)-1, jasmonic acid (-)-4, and their derivatives.
Retrosynthesis of coronatine and their stereoisomers. A: Retrosynthesis of coronatine and their derivatives. B: Retrosynthesis of coronamic acid moieties.
Synthesis of naturally occurring coronatine (+)-1 and stereoisomers (-)-1, (+)-7, and (-)-7. aEnantio excess was calculated by chiral HPLC analysis.
Effects of synthetic coronatines and related compounds on stomatal aperture in epidermis of I. tricolor (A) and a stoma in epidermis of I. tricolor (B).
Ethyl cyanoformate is a colorless to pale yellow liquid, known for its reactivity in organic synthesis, particularly as a cyanating agent. It's used in various reactions, including the introduction of cyanide groups into organic molecules and the synthesis of β-cyano-substituted acrylates.
Cyanation of various aldehydes (4) with ethyl cyanoformate (3) catalyzed by DMA
Cyanation of various ketones (8) with ethyl cyanoformate (3) catalyzed by DMA