The present invention provides new classes of phenol compounds, including those derived from tyrosol and analogues, useful as monomers for preparation of biocompatible polymers, and biocompatible polymers prepared from these monomeric phenol compounds, including novel biodegradable and/or bioresorbable polymers. These biocompatible polymers or polymer compositions with enhanced bioresorbabilty and processibility are useful in a variety of medical applications, such as in medical devices and controlled-release therapeutic formulations. The invention also provides methods for preparing these monomeric phenol compounds and biocompatible polymers.

The present disclosure relates to a series of preparation methods including extraction, separation, purification, and commercialization of ferulic acid, which is a highly functional material from corn brans (a by-product of grain), and more specifically, to a preparation method wherein ferulic acid is extracted from corn brans (a by-product of grain) in high yield by a novel method, and the extracted ferulic acid is separated and purified in high yield and high purity by an economical method, followed by commercialization.

The present disclosure relates to a series of preparation methods including extraction, separation, purification, and commercialization of ferulic acid, which is a highly functional material from corn brans (a by-product of grain), and more specifically, to a preparation method wherein ferulic acid is extracted from corn brans (a by-product of grain) in high yield by a novel method, and the extracted ferulic acid is separated and purified in high yield and high purity by an economical method, followed by commercialization.

Provided herein are reactor systems and processes for producing organic acids directly from beta-lactones. Such reactor systems and processes involve the use of a heterogeneous catalyst, such as a zeolite at vapor phase conditions. The reactor systems and processes may use a fixed bed, moving bed or fluidized contacting zone as reactor configurations.

Provided herein are reactor systems and processes for producing organic acids directly from beta-lactones. Such reactor systems and processes involve the use of a heterogeneous catalyst, such as a zeolite at vapor phase conditions. The reactor systems and processes may use a fixed bed, moving bed or fluidized contacting zone as reactor configurations.

Disclosed is a preparation method of phenoxycarboxylic acid herbicides. The preparation method comprises the following steps. S1: mixing an anhydrous phenol and a basic substance with a chloro-substituted carboxylic acid ester and performing a one-pot condensation reaction in an anhydrous system to obtain a phenoxycarboxylic acid ester. The chloro-substituted carboxylic acid ester is represented by the formula ClR.sub.1COOR, in which R.sub.1 is a C1-3 alkanediyl or alkylidene group, R is a C1-10 alkyl group or a C3-10 cycloalkyl group; S2: the phenoxycarboxylic acid ester undergoes selective chlorination with a chlorinating agent in the presence of a first catalyst and a second catalyst to obtain a chloro-substituted phenoxycarboxylic acid ester; and S3: the chloro-substituted phenoxycarboxylic acid ester undergoes an acid hydrolysis reaction to obtain a phenoxycarboxylic acid herbicide represented by formula I, in which R.sub.3 is H, Cl or CH.sub.3. ##STR00001##

Disclosed is a preparation method of phenoxycarboxylic acid herbicides. The preparation method comprises the following steps. S1: mixing an anhydrous phenol and a basic substance with a chloro-substituted carboxylic acid ester and performing a one-pot condensation reaction in an anhydrous system to obtain a phenoxycarboxylic acid ester. The chloro-substituted carboxylic acid ester is represented by the formula ClR.sub.1COOR, in which R.sub.1 is a C1-3 alkanediyl or alkylidene group, R is a C1-10 alkyl group or a C3-10 cycloalkyl group; S2: the phenoxycarboxylic acid ester undergoes selective chlorination with a chlorinating agent in the presence of a first catalyst and a second catalyst to obtain a chloro-substituted phenoxycarboxylic acid ester; and S3: the chloro-substituted phenoxycarboxylic acid ester undergoes an acid hydrolysis reaction to obtain a phenoxycarboxylic acid herbicide represented by formula I, in which R.sub.3 is H, Cl or CH.sub.3. ##STR00001##

The invention relates to inhibitors of the NHR2 tetramerization and their use as tumor therapeutics (e.g. against acute myeloid leukemia (AML)), cytostatics, and diagnostic agents.

The invention relates to inhibitors of the NHR2 tetramerization and their use as tumor therapeutics (e.g. against acute myeloid leukemia (AML)), cytostatics, and diagnostic agents.

Provided herein are compounds that are useful intermediates that may used to synthesize myeloid cell leukemia 1 protein (Mcl-1) inhibitors. Also provided are Mcl-1 inhibitors, methods of their preparation, related pharmaceutical compositions, and methods of using the same. For example, provided herein are compounds of Formula I, ##STR00001##
and pharmaceutically acceptable salts thereof and pharmaceutical compositions containing the compounds. The compounds and compositions provided herein may be used, for example, in the treatment of diseases or conditions, such as cancer.