Patent classifications
C07C13/547
Crosslinked polymers with tunable coefficients of thermal expansion
Curatives and their resulting thermosets and other crosslinked polymers can reduce thermal expansion mismatch between an encapsulant and objects that are encapsulated. This can be accomplished by incorporating a negative CTE moiety into the thermoset resin or polymer backbone. The negative CTE moiety can be a thermal contractile unit that shrinks as a result of thermally induced conversion from a twist-boat to chair or cis/trans isomerization upon heating. Beyond CTE matching, other potential uses for these crosslinked polymers and thermosets include passive energy generation, energy absorption at high strain rates, mechanophores, actuators, and piezoelectric applications.
Glucosylated steviol glycoside as a flavor modifier
A taste and flavor profile modifying composition is described. The composition includes a blend of glucosylated steviol glycosides and residual steviol glycosides which can modify the intensity of a taste and/or flavor in a food or beverage product.
METHOD OF RETARDING AN ETHYLENE RESPONSE
A compound of Formula I, wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are independently hydrogen, halogen, an unsubstituted alkyl, alkenyl, alkynyl, cydoalkyi, cydoalkylalkyi, aryl, phenyl, or naphthyl group, and a substituted alkyl, alkenyl, alkynyl, cydoalkyi, cydoalkylalkyi, aryl, phenyl, or naphthyl group having as a substituent a halogen, alkoxy, substituted phenoxy, unsubstituted phenoxy group or a heteroatom such as oxygen, sulfur, nitrogen, phosphorus and boron.
##STR00001##
METHOD OF RETARDING AN ETHYLENE RESPONSE
A compound of Formula I, wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are independently hydrogen, halogen, an unsubstituted alkyl, alkenyl, alkynyl, cydoalkyi, cydoalkylalkyi, aryl, phenyl, or naphthyl group, and a substituted alkyl, alkenyl, alkynyl, cydoalkyi, cydoalkylalkyi, aryl, phenyl, or naphthyl group having as a substituent a halogen, alkoxy, substituted phenoxy, unsubstituted phenoxy group or a heteroatom such as oxygen, sulfur, nitrogen, phosphorus and boron.
##STR00001##
PROCESS FOR THE PREPARATION OF TREPROSTINIL
Treprostinil is a synthetic prostacyclin derivative with thrombocyte aggregation inhibitory and vasodilatory activity. Treprostinil can be administered in subcutaneous, intravenous, inhalable, or oral forms. Disclosed is a method for the preparation of treprostinil of formula I and its amorphous form, anhydrate form, monohydrate form, and polyhydrate form salts with bases. In the disclosed method, the chiral center in the 3-hydroxyoctyl substituent is formed at the end of the synthesis, so that the method is robust and well scalable.
##STR00001##
Also disclosed are treprostinil intermediates and the preparation of the intermediates.
PROCESS FOR THE PREPARATION OF TREPROSTINIL
Treprostinil is a synthetic prostacyclin derivative with thrombocyte aggregation inhibitory and vasodilatory activity. Treprostinil can be administered in subcutaneous, intravenous, inhalable, or oral forms. Disclosed is a method for the preparation of treprostinil of formula I and its amorphous form, anhydrate form, monohydrate form, and polyhydrate form salts with bases. In the disclosed method, the chiral center in the 3-hydroxyoctyl substituent is formed at the end of the synthesis, so that the method is robust and well scalable.
##STR00001##
Also disclosed are treprostinil intermediates and the preparation of the intermediates.
CENTRALLY FUNCTIONALIZABLE LIVING CATIONIC POLYMER OR COPOLYMER AND METHODS OF SYNTHESIZING THE SAME
In various embodiments, the present invention is directed to a centrally-functionalizable living cationic polymer or copolymer having a centrally-substituted tetraene group having the formula
##STR00001##
wherein each R is selected from the group consisting of a polymer or a copolymer, such as a polyisobutylene polymer or a poly(isobutylene-b-styrene) copolymer.
CENTRALLY FUNCTIONALIZABLE LIVING CATIONIC POLYMER OR COPOLYMER AND METHODS OF SYNTHESIZING THE SAME
In various embodiments, the present invention is directed to a centrally-functionalizable living cationic polymer or copolymer having a centrally-substituted tetraene group having the formula
##STR00001##
wherein each R is selected from the group consisting of a polymer or a copolymer, such as a polyisobutylene polymer or a poly(isobutylene-b-styrene) copolymer.
Process for the preparation of treprostinil
Treprostinil is a synthetic prostacyclin derivative with thrombocyte aggregation inhibitory and vasodilatory activity. Treprostinil can be administered in subcutaneous, intravenous, inhalable, or oral forms. Disclosed is a method for the preparation of treprostinil of formula I and its amorphous form, anydrate form, monohydrate form, and polyhydrate form salts with bases. In the disclosed method, the chiral center in the 3-hydroxyoctyl substituent is formed at the end of the synthesis, so that the method is robust and well scalable. ##STR00001##
Also disclosed are treprostinil intermediates and the preparation of the intermediates.
Process for the preparation of treprostinil
Treprostinil is a synthetic prostacyclin derivative with thrombocyte aggregation inhibitory and vasodilatory activity. Treprostinil can be administered in subcutaneous, intravenous, inhalable, or oral forms. Disclosed is a method for the preparation of treprostinil of formula I and its amorphous form, anydrate form, monohydrate form, and polyhydrate form salts with bases. In the disclosed method, the chiral center in the 3-hydroxyoctyl substituent is formed at the end of the synthesis, so that the method is robust and well scalable. ##STR00001##
Also disclosed are treprostinil intermediates and the preparation of the intermediates.