摘要:
This invention relates to novel 4-aminoquinazolines, their derivatives, pharmaceutically acceptable salts, solvates, and hydrates thereof. This invention also provides compositions comprising a compound of this invention and the use of such compositions in methods of treating diseases and conditions that are beneficially treated by administering inhibitors of the EGFR and HER-2.
摘要:
The present invention provides processes and compounds that are useful in the preparation of (3α, 3aβ, 6aβ)-hexahydrofuro[2,3- b ]furan-3-ol and diastereoisomers thereof, which are useful in the preparation of compounds that may be inhibitors of HIV aspartyl protease.
摘要:
An improved one pot process for preparing 2-deoxy-D-erythro-2,2-difluoro-pentafuranose-1-ulose-3,5-dibenzoate of Formula (I) comprising hydrolysis of (erythro:threo) alkyl-3-dioxalan-4-yl-2,2-difluoro-3-hydroxy propionate of Formula (III) where alkyl group is having C1-C4 number of carbon atoms using a mild acid and selectively isolating 2-deoxy-D-erythro-2,2-difluoro-pentafuranose-1-ulose-3,5-dibenzoate from the mixture of erythro & threo enantiomers using ethyl acetate, ethylene dichloride and diisopropyl ether as solvents with improved yield and purity.
摘要:
Fluorophore compounds and methods for their use are disclosed. The fluorophores contain a 2-dicyanomethylen-3-cyano-2,5-dihydrofuran (DCDHF) moiety and one or more donor groups conjugated to the 2-dicyanomethylen-3-cyano-2,5-dihydrofuran group. The donor groups can contain atoms with free electron pairs such as oxygen, sulfur, nitrogen, or phosphorous. The fluorophore compounds can be used to label and detect biological molecules and biological structures either in vivo or in vitro.
摘要:
The present invention relates to a method for the preparation of citalopram or any of its enantiomers and acid addition salts thereof comprising reaction of a compound of formula (II), with a diene having formula (III), wherein X is O, S, SO2, -N=N-, -CO-O-, -O-CO-, or with a diene having formula (IV) wherein R is alkyl or optionally substituted aryl or arylalkyl. The invention also relates to intermediates used in the new process for the preparation of citalopram, as well as citalopram prepared according to the new process.
摘要:
A process of obtaining a purified geometric isomer of an unsaturated macrocyclic compound is disclosed herein. The process is effected by contacting an ion exchange medium comprising silver ions with a mixture comprising at least one geometric isomer of the unsaturated macrocyclic compound, to thereby obtain at least one fraction comprising the purified geometric isomer of the macrocyclic compound. A system configured for performing the process is also disclosed.
摘要:
La presente invención se refiere a un procedimiento nuevo de síntesis de intermedios de crambescidinas y de la cimipronidina, además de los posibles derivados de la misma. Además la presente invención se refiere a unos intermedios de reacción para la síntesis de las crambescidinas y de la cimipronidina o de cualquiera de sus derivados.
摘要:
Compositions and methods of using compositions for treatment of inflammatory diseases and immune disorders are provided. Allylamino compounds are disclosed which are inhibitors of semicarbazide-sensitive amine oxidase (SSAO) and/or vascular adhesion protein 1 (VAP-I). The compounds have therapeutic utility in suppressing inflammation and inflammatory responses, and in treatment of several disorders, including multiple sclerosis and stroke.
摘要:
Vinyl oxiranes are rearranged to 2,5-dihydrofuran using catalyst (III) or (IV). The 2,5-dihydrofuran can be reduced to tetrahydrofuran. 3,4-Epoxy-l-butene substrate is converted to 2,5-dihydrofuran which in turn is converted to tetrahydrofuran. Substrate for making 3-methyltetrahydrofuran is prepared from isoprene. Substrate for making 2-methyltetrahydrofuran is prepared from piperylene. Reactions analogous to that with vinyl oxiranes are carried out with vinyl thiiranes and vinyl aziridines.