Application of Hansch’s Model to Capsaicinoids and Capsinoids: A Study Using the Quantitative Structure−Activity Relationship. A Novel Method for the Synthesis of Capsinoids
作者:Gerardo F. Barbero、José M. G. Molinillo、Rosa M. Varela、Miguel Palma、Francisco A. Macías、Carmelo G. Barroso
DOI:10.1021/jf9035029
日期:2010.3.24
been synthesized, and a newmethod for the synthesis of these compounds has been developed. The yields range from 48.35 to 98.98%. It has been found that the synthetic capsaicinoids and capsinoids present a lipophilia similar to those of the natural compounds and present similar biological activity. The bioactivity of the synthetic capsaicinoids and capsinoids decreases proportionally to the degree of
The present invention provides an anti-tumor pharmaceutical composition having a high anti-tumor effect with low side-effects.
The anti-tumor pharmaceutical composition comprises a N-vanillyl fatty acid amide of formula (1):
1
wherein —CO—R group represents a saturated or unsaturated fatty acid residue containing from 14 to 32 carbon atoms.
According to the invention, there was provided an anti-tumor pharmaceutical composition comprising a N-vanillyl fatty acid amide which relates to capsaicin wherein the composition has a low side-effect and a high anti-tumor effect, in particular an anti-melanoma effect and an anti-leukemia cell effect; and is very low pungent, stimulatory and preinflammatory effect.
A method of producing a capsaicin analogue, comprising reacting a fatty acid having 12 or more carbon atoms or an ester thereof (inclusive of fats and oils) with capsaicin in the presence of lipase to produce an N-vanillyl fatty acid amide having an acyl group containing 12 or more carbon atoms, and a method of producing fats and oils containing capsaicin analogues, comprising reacting edible fats and oils with capsaicin in the presence of lipase to produce N-vanillyl fatty acid amides from a portion of the edible fats and oils are provided. It is possible to produce non-pungent capsaicin analogues and other capsaicin analogues, which facilitates utilization of non-pungent capsaicin analogues in the food industry.
The present invention provides an anti-tumor pharmaceutical composition having a high anti-tumor effect with low side-effects.
The anti-tumor pharmaceutical composition comprises a N-vanillyl fatty acid amide of formula (1):
wherein -CO-R group represents a saturated or unsaturated fatty acid residue containing from 14 to 32 carbon atoms.
According to the invention, there is provided an anti-tumor pharmaceutical composition comprising a N-vanillyl fatty acid amide which is related to capsaicin wherein the composition has a low side-effect and a high anti-tumor effect, in particular an anti-melanoma effect and an anti-leukemia cell effect; and has a very low pungency, a stimulatory and a preinflammatory effect.
A Novel Acylase from <i>Streptomyces mobaraensis</i> that Efficiently Catalyzes Hydrolysis/Synthesis of Capsaicins as Well as <i>N</i>-Acyl-<scp>l</scp>-amino Acids and <i>N</i>-Acyl-peptides
A novel enzyme that catalyzes efficient hydrolysis of capsaicin (8-methyl-N-vanillyl-6-nonenamide) was isolated from the culture broth of Streptomyces mobaraensis. The enzyme consisted of two dissimilar subunits with molecular masses of 61 and 19 kDa. The enzyme was activated and stabilized in the presence of Co2+. It showed a pH optimum of about 8 and was stable at temperatures of up to 55 degrees C for 1 h at pH 7.8. The specific activity of the enzyme for the hydrolysis of capsaicin was 10(2)-10(4) times higher than those for the enzymes reported to date. In an aqueous/n-hexane biphasic system, capsaicin analogues such as octanoyl, decanoyl, and lauroyl vanillylamides were synthesized from the corresponding fatty acids and vanillylamine at yields of 50% or greater. In addition, the enzyme catalyzed the deacylation of N-lauroyl-L-amino acids and N-lauroyl-L-dipeptides and the efficient synthesis of N alpha-lauroyl-L-lysine, N epsilon-lauroyl-L-lysine, and various N-lauroyl-peptides in aqueous solution in both the absence and the presence of glycerol.