C07D301/02

Process of preparing a peptide epoxyketone immunoproteasome inhibitor, and precursors thereof

Disclosed herein are methods for preparing [(2S,3R)N-[(2S)-3-(cyclopent-1-en-1-yl)-1-[(2R)-2-methyloxiran-2-yl]-1-oxopropan-2-yl]-3-hydroxy-3-(4-methoxyphenyl)-2-[(2S)-2-[2-(morpholin-4-yl)acetamido]propanamido]propanamide (compound G): and precursors thereof. ##STR00001##

Process of preparing a peptide epoxyketone immunoproteasome inhibitor, and precursors thereof

Disclosed herein are methods for preparing [(2S,3R)N-[(2S)-3-(cyclopent-1-en-1-yl)-1-[(2R)-2-methyloxiran-2-yl]-1-oxopropan-2-yl]-3-hydroxy-3-(4-methoxyphenyl)-2-[(2S)-2-[2-(morpholin-4-yl)acetamido]propanamido]propanamide (compound G): and precursors thereof. ##STR00001##

Process for the manufacture of 2,6-dimethyl-5-hepten-1-al

The present invention relates to an improved process for the manufacture of 2,6-dimethyl-5-hepten-1-al.

Process for the manufacture of 2,6-dimethyl-5-hepten-1-al

The present invention relates to an improved process for the manufacture of 2,6-dimethyl-5-hepten-1-al.

Process for producing epoxy alcohol compound

A compound represented by formula (II): ##STR00001## (where Ar represents a phenyl group optionally substituted by 1 to 3 substituents selected from the group consisting of a halogen atom and a trifluoromethyl group, and R represents a hydrogen atom or an alkyl group having 1 to 12 carbon atoms) is produced by step A: reacting trimethyl oxosulfonium salt or trimethyl sulfonium salt with a base in a solvent, and removing the resulting solid to obtain a trimethyl oxosulfonium ylide solution or a trimethyl sulfonium ylide solution; and step B: reacting a compound represented by formula (I): ##STR00002## and the solution obtained in step A, and the compound represented by formula (II) can be derived to a compound represented by formula (V): ##STR00003## that is useful for production of an antifungal agent.

PROCESS FOR PRODUCING EPOXY ALCOHOL COMPOUND

A compound represented by formula (II):

##STR00001##

(where Ar represents a phenyl group optionally substituted by 1 to 3 substituents selected from the group consisting of a halogen atom and a trifluoromethyl group, and R represents a hydrogen atom or an alkyl group having 1 to 12 carbon atoms)
is produced by
step A: reacting trimethyl oxosulfonium salt or trimethyl sulfonium salt with a base in a solvent, and removing the resulting solid to obtain a trimethyl oxosulfonium ylide solution or a trimethyl sulfonium ylide solution; and
step B: reacting a compound represented by formula (I):

##STR00002##

and the solution obtained in step A,
and the compound represented by formula (II) can be derived to a compound represented by formula (V):

##STR00003##

that is useful for production of an antifungal agent.

PROCESS FOR THE PREPARATION OF SUBSTITUTED OXIRANES AND TRIAZOLES

The present invention relates to a process for the preparation of the compounds II

##STR00001##

from the respective oxo compounds. Furthermore, the invention relates to a process for the preparation of triazole compounds from oxiranes II.

PROCESS FOR THE PREPARATION OF SUBSTITUTED OXIRANES AND TRIAZOLES

The present invention relates to a process for the preparation of the compounds II

##STR00001##

from the respective oxo compounds. Furthermore, the invention relates to a process for the preparation of triazole compounds from oxiranes II.

SUSTAINABLE POLYMER COMPOSITIONS AND METHODS
20200062900 · 2020-02-27 ·

In one aspect, the present invention encompasses compositions of sustainable polycarbonate polymers, methods of producing such polymers, and methods for evaluating whether certain constituents of a polymer chain are derived from biomass or a fossil carbon source.

Methods of producing glycidyl nitrate

Methods of producing glycidyl nitrate. The method comprises reacting glycerol and nitric acid in a microfluidic reactor to form a nitrated glycerol compound. The microfluidic reactor comprises a reaction volume of the microfluidic reactor of less than about 20 ml and an inner diameter of a reaction channel of the microfluidic reactor of less than or equal to about 1000 m. The nitrated glycerol compound is reacted with a base in the microfluidic reactor to form glycidyl nitrate. Additional methods of producing glycidyl nitrate are also disclosed.