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Menthol may also enhance the activity of glycine receptors and negatively modulate 5-HT 3 receptors and nAChRs. [9] Menthol is widely used in dental care as a topical antibacterial agent, effective against several types of streptococci and lactobacilli. [10] Menthol also lowers blood pressure and antagonizes vasoconstriction through TRPM8 ...
Menthoxypropanediol (also known as Cooling agent 10 [tradename of Takasago]), is a synthetic derivative of menthol.While the cooling strength of 3-(l-menthoxy)propane-1,2-diol is accepted as being about 20–25% that of menthol, it is also noted that "in a Vaseline ointment, 3-(l-menthoxy)propane-1,2-diol shows a cool feeling 2.0 to 2.5 times stronger than that of l-menthol".
p-Menthane-3,8-diol, also known as para-menthane-3,8-diol, PMD, or menthoglycol, is an organic compound classified as a diol and a terpenoid.It is colorless. Its name reflects the hydrocarbon backbone, which is that of p-menthane.
Menthone was first synthesized by oxidation of menthol in 1881, [6] [needs update] [7] before being found as a component in essential oils in 1891. [ citation needed ] Of the isomers possible for this chemical structure (see below), the one termed l -menthone —formally, the (2 S ,5 R )- trans -2-isopropyl-5-methylcyclohexanone (see infobox ...
The final step in the synthesis of nicotine is the coupling between N-methyl-Δ 1-pyrrollidium cation and niacin. Although studies conclude some form of coupling between the two component structures, the definite process and mechanism remains undetermined.
Chiral auxiliaries are incorporated into synthetic routes to control the absolute configuration of stereogenic centers. David A. Evans' synthesis of the macrolide cytovaricin, considered a classic, utilizes oxazolidinone chiral auxiliaries for one asymmetric alkylation reaction and four asymmetric aldol reactions, setting the absolute stereochemistry of nine stereocenters.
[15] [16] Menthol, hinokitiol and thymol are also used in oral hygiene products. Thymol also has antiseptic and disinfectant properties. [17] Volatile monoterpenes produced by plants can attract or repel insects, thus some of them are used in insect repellents, such as citronellol, eucalyptol, limonene, linalool, hinokitiol, menthol and thymol ...
Thus, the two substrates of this enzyme are (−)-menthol and NADP +, whereas its 3 products are (−)-menthone, NADPH, and H +. This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD + or NADP + as acceptor. The systematic name of this enzyme class is (−)-menthol:NADP ...