(-)-Kaur-16-en-19-oic acid
IUPAC 名称
(1S,4S,5R,9S,10R,13R)-5,9-dimethyl-14-methylidenetetracyclo[11.2.1.0^{1,10}.0^{4,9}]hexadecane-5-carboxylic acid
描述
(-)-kaur-16-en-19-oic acid, also known as ent-kaurenoic acid or ent-kaur-16-en-19-oate, is a member of the class of compounds known as kaurane diterpenoids. Kaurane diterpenoids are diterpene alkaloids with a structure that is based on the kaurane skeleton. Kaurane is a tetracyclic compound that arises by cyclisation of a pimarane precursor followed by rearrangement. It possesses a [3,2,1]-bicyclic ring system with C15-C16 bridge connected to C13, forming the five-membered ring D (-)-kaur-16-en-19-oic acid is practically insoluble (in water) and a weakly acidic compound (based on its pKa). (-)-kaur-16-en-19-oic acid can be found in sugar apple and sunflower, which makes (-)-kaur-16-en-19-oic acid a potential biomarker for the consumption of these food products.
异构
[H][C@@]12C[C@]3(CC1=C)CC[C@]1([H])[C@@](C)(CCC[C@@]1(C)[C@]3([H])CC2)C(O)=O
InChI标识符
InChI=1S/C20H30O2/c1-13-11-20-10-7-15-18(2,16(20)6-5-14(13)12-20)8-4-9-19(15,3)17(21)22/h14-16H,1,4-12H2,2-3H3,(H,21,22)/t14-,15+,16+,18-,19-,20-/m1/s1
键
NIKHGUQULKYIGE-OTCXFQBHSA-N