About 4 mg (14)C methoprene was administered orally to colostomized chickens. (14)C02 was the main (14)C product detected. When large doses were given, elimination was greatest in urine and (14)C was also found in the eggs and all tissues and organs examined ... . In addition to natural (14)C cholesterol and (14)C fatty acid triglycerides, there were metabolites conjugated to glycerol and/or cholesterol. Urine ... and ... feces contained compounds ... and each had undergone considerable isomerization. About 19% of the (14)C appeared in the eggs. Most of this was associated with egg proteins. The egg yolks also had radiolabeled fatty acid glycerides and cholesterol. Blood contained radiolabeled cholesterol and traces of cholesteryl esters. Tissue residues were similar to those found in eggs.
A Hereford steer received a single oral dose of 5-(14)C-methoprene and sacrificed 2 weeks later. No primary metabolites were observed in fat, muscle, liver, lung, blood and bile. However, the majority of the tissue radioactivity was present as (14)C cholesterol. About 72% of the activity in bile appeared in cholesterol, cholic acid, and deoxycholic acid. Protein and cholesteryl esters of fatty acids also contained some radioactivity.
When administered to a lactating cow, 5-(14)C-methoprene gave rise to randomly labeled acetate. This was incorporated into milk fat which was degraded to saturated and mono and di- enoic fatty acids. Labeled lactose, lactalbumin, casein, and free and esterified cholesterol was also observed ... . Similar qualitative results were observed in urine of a guinea pig orally dosed with methoprene. Quantitative differences were observed.
Studies with housefly microsomal enzymes showed that the Beta-esterases present did not appreciably hydrolyze methoprene whereas other analogs were metabolized. Microsomal oxidase activity against juvenile hormone analogs was greater in resistant fly strains. ... Branched chain esters of methoprene analogs did not show significant difference in hydrolysis by housefly microsomal esterases. Methoprene was effective at 0.1 ug/pupa while others were ineffective at 10 ug/pupa.
IDENTIFICATION AND USE: Methoprene is a clear amber liquid. It is used for control of many insect pests in public health, stored commodities (including tobacco), food handling, processing and storage establishments, on animals, and on plants (including glasshouse plants). Particular uses include control of mosquito larvae; sciarid flies in mushroom houses; cigarette beetles and tobacco moths in stored tobacco; Pharaoh's ants; leaf miners on glasshouse chrysanthemums; stored product pests in food and tobacco processing plants and warehouses. HUMAN EXPOSURE AND TOXICITY: There are no data available. ANIMAL STUDIES: Non-irritating to skin and eyes (rabbits). In 2 year feeding trials, rats receiving 5000 mg/kg diet and mice receiving 2500 mg/kg diet showed no ill-effects. No teratogenic effects on rats at 1000 mg/kg and on rabbits at 500 mg/kg. No mutagenic effects on rats at 2000 mg/kg. No reproductive adverse effects in 3-generation reproduction studies on rats at 2500 mg/kg diet. Methoprene applied at a concentration of 0.2 ppm did not significantly affect the locomotor activities of mosquitofish or goldfish. This application rate is ten times the suggested rates. Methoprene-membrane interaction and perturbation of cell bioenergetics may underlie the mechanism of toxicity of this compound in non-target organisms. Methoprene induces a weak mutagenic effect in the Drosophila wing spot test. ECOTOXICITY STUDIES: Xenopus laevis embryos (stage 8) were exposed to the test chemicals for 96 hr. Assays were conducted under static renewal (24 hr) conditions and chemical concentrations in water were measured at the beginning and end of the renewal periods. Methoprene exposure did not result in developmental toxicity at concentrations up to 2 mg/L. Applications of amethoprene enhanced the levels of dopamine in the brains of 4-day-old male honey bees.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
毒性数据
LC50 (大鼠) > 210,000 mg/m³
LC50 (rat) > 210,000 mg/m3
来源:Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Exposure to multiple stressors from natural and anthropogenic sources poses risk to sensitive crustacean growth and developmental processes. Applications of synthetic pyrethroids and insect growth regulators near shallow coastal waters may result in harmful mixture effects depending on the salinity regime. The potential for nonadditive effects of a permethrin (0.01-2 ug/L), methoprene (0.03-10 ug/L ), and salinity (10-40 ppt) exposure on male and female Uca pugnax limb regeneration and molting processes was evaluated by employing a central composite rotatable design with multifactorial regression. Crabs underwent single-limb autotomy followed by a molting challenge under 1 of 16 different mixture treatments. During the exposure (21-66 d), individual limb growth, major molt stage duration, abnormal limb regeneration, and respiration were monitored. At 6 d postmolt, changes in body mass, carapace width, and body condition factor were evaluated. Dorsal carapace tissue was collected, and protein and chitin were extracted to determine the composition of newly synthesized exoskeleton. The present results suggest chronic, low-dose exposures to multiple pesticide stressors cause less-than-additive effects on U. pugnax growth processes. Under increasing concentrations of methoprene and permethrin, males had more protein in their exoskeletons and less gain in body mass, carapace width, and body condition compared to females. Females exhibited less gain in carapace width than controls in response to methoprene and permethrin. Females also displayed elevated respiration rates at all stages of molt, suggesting a high metabolic rate. Divergent growth and fitness between the sexes over the long term could influence crustacean population resilience.
Wash contaminated skin with soap and water. Treat eye exposures by irrigating exposed eyes with copious amounts of clean water or saline for at least 15 minutes. Remove contact lenses, if present, prior to irrigation. If irritation persists after irrigation, send patient to a healthcare facility for further medical attention.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
解毒与急救
如果摄入了大量的甲氧普烯,考虑进行胃肠道去污处理...
If a very large amount of methoprene has been ingested, consider GI decontamination ... .
When (14)C methoprene was administered orally to rats, slightly less than 20% was excreted within 5 days in the urine and a similar amount in feces and almost 40% was excreted as (14)C02. About 17% was retained in the body. Highest concentrations were in liver (84.5 ppm), kidneys (29 ppm), lungs (26 ppm), fat (36.5 ppm), and the adrenal cortex (12-13 ppm). About 12 labeled compounds were detected in the urine but no unchanged methoprene was observed.
Distribution and elimination of (14)C given to chickens as methoprene (14)C (isopropyl (2E,4E)-11-methoxy-3,7,11-trimethyl-2,4-dodecadienate 5 (14)C were investigated. When about 4 mg of methoprene was given in a single oral dose to colostomized chickens, elimination of (14)C was greatest in exhaled air; however, when 105 or 107 mg of methoprene was given, elimination of (14)C was greatest in urine. Up to 19% of the (14)C from a single dose of methoprene was eliminated over a 14 day period in the eggs of laying hens, and (14)C was detected in all tissues and organs examined.
When the metabolic fate of methoprene (isopropyl (2E,4E)-11-methoxy-3,7,11-trimethyl- 2,4-dodecadienoate) was studied in a guinea pig, a steer, and a cow, a rather large percentage of the radiolabel was incorporated in the tissues and respired by the animals. In the urine and feces, a small amount of radiolabel was metabolized into free primary metabolites, somewhat more was incorporated into simple glucuronides, and a considerable quantity of radiolabel was found in polar compounds, possibly complex conjugates or polar biochemicals. No methoprene was found in the urine, but approximately 40% of the radiolabel in feces was contributed by unmetabolized methoprene. The formation of conjugates and the metabolism of methoprene was more extensive in the steer than in the guinea pig.
Treatment of Leghorn chickens with a single oral dose of (5-14C)methoprene (isopropyl (2E,4E)-11-methoxy-3,7,11-trimethyl-2,4-dodecadienoate) resulted in residual radioactivity in tissues and eggs. The chemical nature of the residual radiolabel in tissue (muscle, fat, liver), eggs, and excrement was thoroughly examined at several doses (0.6 to 77 mg/kg). Although a high initial dose (59 mg/kg) resulted in methoprene residues in muscle (0.01 ppm), fat (2.13 ppm), and egg yolk (8.03 ppm), these residues of methoprene represented only 39 and 2% of the total (14)C label in fat and egg yolk, respectively. Radiolabeled natural products from extensive degradation of methoprene were by far the most important 14C residues in tissues and eggs, particularly at the lower dose of 0.6 mg/kg where (14)C cholesterol and normal (14)C fatty acids (as triglyceride) contributed 8 and 71% of the total radiolabel in egg yolk. Novel minor metabolites of methoprene were observed in lipid depots, resulting from saturation of the dienoate system. These minor metabolites were conjugated to glycerol and/or cholesterol. radioactivity were found in the bile, liver, skin, fetus, and udder. In all species, approximately 40 percent of the radioactivity in the feces was due to unchanged methoprene. No methoprene was found in the urine.
[EN] ACC INHIBITORS AND USES THEREOF<br/>[FR] INHIBITEURS DE L'ACC ET UTILISATIONS ASSOCIÉES
申请人:GILEAD APOLLO LLC
公开号:WO2017075056A1
公开(公告)日:2017-05-04
The present invention provides compounds I and II useful as inhibitors of Acetyl CoA Carboxylase (ACC), compositions thereof, and methods of using the same.
The present invention relates compounds of the formula: or pharmaceutically acceptable salts thereof, useful as sodium channel blockers, as well as compositions containing the same, processes for the preparation of the same, and therapeutic methods of use therefore in promoting hydration of mucosal surfaces and the treatment of diseases including cystic fibrosis, chronic obstructive pulmonary disease, asthma, bronchiectasis, acute and chronic bronchitis, emphysema, and pneumonia.
CHLORO-PYRAZINE CARBOXAMIDE DERIVATIVES WITH EPITHELIAL SODIUM CHANNEL BLOCKING ACTIVITY
申请人:Parion Sciences, Inc.
公开号:US20140171447A1
公开(公告)日:2014-06-19
This invention provides compounds of the formula I:
and their pharmaceutically acceptable salts, useful as sodium channel blockers, compositions containing the same, therapeutic methods and uses for the same and processes for preparing the same.
[EN] BICYCLYL-SUBSTITUTED ISOTHIAZOLINE COMPOUNDS<br/>[FR] COMPOSÉS ISOTHIAZOLINE SUBSTITUÉS PAR UN BICYCLYLE
申请人:BASF SE
公开号:WO2014206910A1
公开(公告)日:2014-12-31
The present invention relates to bicyclyl-substituted isothiazoline compounds of formula (I) wherein the variables are as defined in the claims and description. The compounds are useful for combating or controlling invertebrate pests, in particular arthropod pests and nematodes. The invention also relates to a method for controlling invertebrate pests by using these compounds and to plant propagation material and to an agricultural and a veterinary composition comprising said compounds.
The present invention relates to azoline compounds of formula (I) wherein A, B1, B2, B3, G1, G2, X1, R1, R3a, R3b, Rg1 and Rg2 are as defined in the claims and the description. The compounds are useful for combating or controlling invertebrate pests, in particular arthropod pests and nematodes. The invention also relates to a method for controlling invertebrate pests by using these compounds and to plant propagation material and to an agricultural and a veterinary composition comprising said compounds.