Patent classifications
C07C233/54
TRIFLUOROMETHOXYLATION OF ARENES VIA INTRAMOLECULAR TRIFLUOROMETHOXY GROUP MIGRATION
The present invention provides a process of producing a trifluoromcthoxylated aryl or trifluoromothoxylated heteroaryl having the structure:
##STR00001## wherein A is an aryl or heteroaryl, each with or without substitution; and R.sub.1 is H, -(alkyl), -(alkenyl), -(alkynyl), -(aryl), -(heteroaryl), -(alkylaryl), -(alkylheteroaryl), NH-(alkyl), N(alkyl).sub.2, NH-(alkenyl), NH-(alkynyl) NH-(aryl), NH-(heteroaryl), O-(alkyl), O-(alkenyl), O-(alkynyl), O-(aryl), O-(heteroaryl), S-(alkyl), S-(alkenyl), S-(alkynyl), S-(aryl), or S-(heteroaryl), comprising: (a) reacting a compound having the structure:
##STR00002## with a trifluoromethylating agent in the presence of a base in a first suitable solvent under conditions to produce a compound having the structure:
##STR00003##
and (b) maintaining the compound produced in step (a) in a second suitable solvent under conditions sufficient to produce the trifluoromethoxylated aryl or trifluormethoxylated heteroaryl having the structure:
##STR00004##
RETINOID COMPOUND, PREPARATION METHOD THEREFOR, INTERMEDIATES THEREOF AND APPLICATION THEREOF
Disclosed are a retinoid compound, a preparation method therefor, intermediates thereof and an application thereof. The retinoid compound I of the present invention has a good tumor growth inhibition rate.
RETINOID COMPOUND, PREPARATION METHOD THEREFOR, INTERMEDIATES THEREOF AND APPLICATION THEREOF
Disclosed are a retinoid compound, a preparation method therefor, intermediates thereof and an application thereof. The retinoid compound I of the present invention has a good tumor growth inhibition rate.
Methods of Treating Hair Related Conditions
Disclosed herein are methods for treating hair related disorders, including compounds that may be specific or modulate PPAR receptors.
Methods of Treating Hair Related Conditions
Disclosed herein are methods for treating hair related disorders, including compounds that may be specific or modulate PPAR receptors.
Trifluoromethoylation of arenes via intramolecular trifluoromethoxy group migration
The present invention provides a process of producing a trifluoromethoxylated aryl or trifluoromethoxylated heteroaryl having the structure: ##STR00001##
wherein
A is an aryl or heteroaryl, each with or without substitution; and
R.sub.1 is H, -(alkyl), -(alkenyl), -(alkynyl), -(aryl), -(heteroaryl), -(alkylaryl), -(alkylheteroaryl), NH-(alkyl), N(alkyl).sub.2, NH-(alkenyl), NH-(alkynyl) NH-(aryl), NH-(heteroaryl), O-(alkyl), O-(alkenyl), O-(alkynyl), O-(aryl), O-(heteroaryl); S-(alkyl), S-(alkenyl), S-(alkynyl), S-(aryl), or S-(heteroaryl), comprising:
(a) reacting a compound having the structure: ##STR00002##
with a trifluoromethylating agent in the presence of a base in a first suitable solvent under conditions to produce a compound having the structure: ##STR00003##
and
(b) maintaining the compound produced in step (a) in a second suitable solvent under conditions sufficient to produce the trifluoromethoxylated aryl or trifluormethoxylated heteroaryl having the structure: ##STR00004##
Trifluoromethoylation of arenes via intramolecular trifluoromethoxy group migration
The present invention provides a process of producing a trifluoromethoxylated aryl or trifluoromethoxylated heteroaryl having the structure: ##STR00001##
wherein
A is an aryl or heteroaryl, each with or without substitution; and
R.sub.1 is H, -(alkyl), -(alkenyl), -(alkynyl), -(aryl), -(heteroaryl), -(alkylaryl), -(alkylheteroaryl), NH-(alkyl), N(alkyl).sub.2, NH-(alkenyl), NH-(alkynyl) NH-(aryl), NH-(heteroaryl), O-(alkyl), O-(alkenyl), O-(alkynyl), O-(aryl), O-(heteroaryl); S-(alkyl), S-(alkenyl), S-(alkynyl), S-(aryl), or S-(heteroaryl), comprising:
(a) reacting a compound having the structure: ##STR00002##
with a trifluoromethylating agent in the presence of a base in a first suitable solvent under conditions to produce a compound having the structure: ##STR00003##
and
(b) maintaining the compound produced in step (a) in a second suitable solvent under conditions sufficient to produce the trifluoromethoxylated aryl or trifluormethoxylated heteroaryl having the structure: ##STR00004##
INHIBITING HYDROCARBON HYDRATE AGGLOMERATION
A process for inhibiting the formation of gas hydrates in a hydrocarbon fluid including adding to the hydrocarbon fluid, a gas hydrate anti-agglomerate which is a biodegradable anti-agglomerant derived from a naturally occurring substance.
INHIBITING HYDROCARBON HYDRATE AGGLOMERATION
A process for inhibiting the formation of gas hydrates in a hydrocarbon fluid including adding to the hydrocarbon fluid, a gas hydrate anti-agglomerate which is a biodegradable anti-agglomerant derived from a naturally occurring substance.
Farnesoid X receptor agonists and uses thereof
Described herein are compounds that are farnesoid X receptor agonists, methods of making such compounds, pharmaceutical compositions and medicaments comprising such compounds, and methods of using such compounds in the treatment of conditions, diseases, or disorders associated with farnesoid X receptor activity.