Patent classifications
C07C39/12
Process to prepare treprostinil, the active ingredient in Remodulin®
This present invention relates to an improved process to prepare prostacyclin derivatives. One embodiment provides for an improved process to convert benzindene triol to treprostinil via salts of treprostinil and to purify treprostinil.
PROCESS TO PREPARE TREPROSTINIL, THE ACTIVE INGREDIENT IN REMODULIN®
This present invention relates to an improved process to prepare prostacyclin derivatives. One embodiment provides for an improved process to convert benzindene triol to treprostinil via salts of treprostinil and to purify treprostinil.
Amination and hydroxylation of arylmetal compounds
In one aspect, the present disclosure provides methods of preparing a primary or secondary amine and hydroxylated aromatic compounds. In some embodiments, the aromatic compound may be unsubstituted, substituted, or contain one or more heteroatoms within the rings of the aromatic compound. The methods described herein may be carried out without the need for transition metal catalysts or harsh reaction conditions.
Amination and hydroxylation of arylmetal compounds
In one aspect, the present disclosure provides methods of preparing a primary or secondary amine and hydroxylated aromatic compounds. In some embodiments, the aromatic compound may be unsubstituted, substituted, or contain one or more heteroatoms within the rings of the aromatic compound. The methods described herein may be carried out without the need for transition metal catalysts or harsh reaction conditions.
Process to prepare treprostinil, the active ingredient in Remodulin®
This present invention relates to an improved process to prepare prostacyclin derivatives. One embodiment provides for an improved process to convert benzindene triol to treprostinil via salts of treprostinil and to purify treprostinil.
Process to prepare treprostinil, the active ingredient in Remodulin®
This present invention relates to an improved process to prepare prostacyclin derivatives. One embodiment provides for an improved process to convert benzindene triol to treprostinil via salts of treprostinil and to purify treprostinil.
Monomer for hardmask composition and hardmask composition including the monomer and method of forming patterns using the hardmask composition
A monomer for a hardmask composition is represented by the following Chemical Formula 1, ##STR00001##
Monomer for hardmask composition and hardmask composition including the monomer and method of forming patterns using the hardmask composition
A monomer for a hardmask composition is represented by the following Chemical Formula 1, ##STR00001##
Process to prepare treprostinil, the active ingredient in remodulin®
This present invention relates to an improved process to prepare prostacyclin derivatives. One embodiment provides for an improved process to convert benzindene triol to treprostinil via salts of treprostinil and to purify treprostinil.
Material for forming film for lithography, composition for forming film for lithography, film for lithography, pattern forming method and purification method
The material for forming a film for lithography according to the present invention contains a compound represented by the following formula (1): ##STR00001##
wherein, each R.sup.0 independently represents a monovalent group having an oxygen atom, a monovalent group having a sulfur atom, a monovalent group having a nitrogen atom, a hydrocarbon group or a halogen atom, and each p is independently an integer of 0 to 4.