摘要:
The present invention relates to a compound represented by formula I:and pharmaceutically acceptable salts thereof. The compounds of formula I are inhibitors of diacylglyceride O-acyltransferase 2 ("DGAT2") and may be useful in the treatment, prevention and suppression of diseases mediated by DGAT2. The compounds of the present invention may be useful in the treatment of hepatic steatosis, diabetes mellitus, obesity, hyperlipidemia, hypercholesterolemia, atherosclerosis, cardio renal diseases such as chronic kidney diseases and heart failure and related diseases and conditions.
摘要:
Provided is an apparatus for generating 1-methylcyclopropene. The apparatus of the present invention may enable the immediate and convenient generation of 1-methylcyclopropene in a desired location using stable 1-methylcyclopropene precursors.
摘要:
Ethynylcyclopropane is prepared in a two-step process by reacting (1,1-dimethoxyethyl)- cyclopropane with a thiol and eliminating the thiol from the intermediate.
摘要:
There is provided batch methods of making cyclopropene complex involving mixture comprising (i) one or more molecular encapsulating agent and (ii) solvent, wherein the ratio of the amount of said (i) to the amount of said (ii) is higher than the solubility of said molecular encapsulating agent in said solvent. There is also provided continuous methods of making cyclopropene complex in which the ratio of the rate of addition of molecular encapsulating agent to the rate of addition of solvent is higher than the solubility of said molecular encapsulating agent in said solvent.
摘要:
The present invention generally relates to methods of inhibiting ethylene responses in plants and plant materials, and particularly relates to methods of inhibiting various ethylene responses including plant maturation and degradation, by exposing plants to cyclopropene derivatives and compositions thereof wherein: 1) at least one substituent on the cyclopropene ring contains a carbocyclic or heterocyclic ring, or 2) a substituent contains silicon, sulfur, phosphorous, or boron, or 3) least one substituent contains from one to four non-hydrogen atoms and at least one substituent contains more than four non-hydrogen atoms.
摘要:
The present invention relates to a method to prepare cyclopropenes by combining an allyl compound of the formula: wherein:
X is a leaving group; and R is hydrogen or a substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, phenyl or naphthyl group wherein the substituents are independently halogen, alkoxy, or substituted or unsubstituted phenoxy; with a non-nucleophilic strong base in an inert solvent in the presence of a catalytic amount of a non-nucleophilic, weaker base.
摘要:
An efficient and facile process for the preparation of cyclopropylacetylene from thioanisole and cyclopropyl substituted ketones or aldehydes is disclosed
摘要:
The present invention relates generally to novel methods for the synthesis of cyclopropylacetylene which is an essential reagent in the asymmetric synthesis of (S)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihydro-2H-3,1-benzoxazin-2-one; a useful human immunodeficiency virus (HIV) reverse transcriptase inhibitor. In the process, cyclopropane carboxaldehyde is condensed with malonic acid to form 3-cyclopropylacrylic acid; 3-cyclopropylacrylic acid is halogenated to form (E,Z)-1-halo-2-cyclopropylethylene; and (E,Z)-1-halo-2-cyclopropylethylene is dehydrohalogenated to form cyclopropyl acetylene. This improvement provides for high conversion of inexpensive, readily available starting materials into cyclopropylacetylene, high overall yields and can be conducted on an industrial scale.
摘要:
in which X is a nucleofuge selected from halides and pseudohalides and Y is an electrofuge selected from boranes and borates, in the presence of a metal catalyst complex selected from those useful for catalytic cyclopropanation and those useful for catalyzing Heck coupling. The method provides a particularly easy and non-hazardous method of cyclopropanation.