What's the difference between eikosylene and labdane?
Eikosylene
Definition:
(n.) A liquid hydrocarbon, C20H38, of the acetylene series, obtained from brown coal.
Example Sentences:
Labdane
Definition:
Example Sentences:
(1) The abietic type of acids had a more pronounced antibacterial activity than the pimaric and labdane acids when the disc diffusion method was used but there was no inhibition of growth of Gram-negative bacteria.
(2) The antiproliferative activity of two nitrogenous labdane cytotoxic substances from Lissoclinum voeltzkowi Michaelson (Urochordata), dichlorolissoclimide (P2) and chlorolissoclimide (P1), was studied in vitro on a continuous human non-small-cell bronchopulmonary carcinoma line (NSCLC-N6) at the cell cycle level.
(3) The effects of the diterpene sclareol glycol (SG) of the labdane family on some dopamine (DA) related behavior (locomotor activity in mice, apomorphine-induced stereotypy in mice and rats, and haloperidol-induced catalepsy in rats) were studied.
(4) The microbial metabolism of sclareol (1), a labdane diterpene ditertiary alcohol, was studied.
(5) The concentrations of these labdane diterpenes required to elicit a 50% inhibition of the cytochrome P-450 dependent steroid hydroxylase activity in the insect tissues ranged from approximately 5 x 10(-6) to 5 x 10(-4) M.
(6) Forskolin is a diterpene of the labdane family which activates adenylate cyclase.
(7) Sclareol glycol (SG) is a semisynthetic diterpene of the labdanic group.
(8) The effects of a reversible activator of adenylate cyclase sclareol glycol (SG), a semisynthetic diterpene of the labdane family, on the aggressive behavior induced by a high dose of clonidine in mice were studied.
(9) Bioassay-directed fractionation of the active extract led to the isolation of three labdane-type diterpene acids, scoparic acid A [1] [6-benzoyl-12-hydroxy-labda-8(17), 13-dien-18-oic acid], scoparic acid B [2] [6-benzoyl-14,15-dinor-13-oxo-8(17)-labden-18-oic acid], and scoparic acid C [3] [6-benzoyl-15-nor-14-oxo-8(17)-labden-18-oic acid], the structures of which were established by spectral means, including X-ray analysis.
(10) The effects of the diterpene sclareol glycol (SG) of the labdane family on convulsive seizures induced by pentylenetetrazole (PTZ), picrotoxin and bicuculline in mice were studied.
(11) A new labdane diterpene, prehispanolone LC-5504, namely 9 alpha, 13R,15,16-diepoxy-labdane-14-en-7-one, had been isolated.
(12) This labdanic derivative was identified on the basis of spectroscopic data and is biologically active against the promastigote Leishmania donovani donovani.
(13) It was identified as 7 alpha-methoxy-3a, 10b-dimethyl-1, 2, 3, 3a alpha, 5a alpha, 7, 10b beta, 10c alpha-octahydro-4H, 9H-furo[2', 3', 4': 4, 5]naphthol[2, 1-c]pyran-4, 9-dione, a labdane-derived compound known as antibiotic LL-Z1271 alpha.
(14) The effects of the diterpene sclareol glycol (SG) of the labdane family on rectal body temperature in rats were studied.
(15) Using pentylenetetrazol (PTZ) in subconvulsant doses, it was found that the semisynthetic diterpene sclareol glycol (SG) from the labdane family of diterpenes at a dose well below the lethal dose, although not being convulsant, had a proconvulsant action in mice.