Abstract:
PROBLEM TO BE SOLVED: To provide pharmaceutical compositions useful in treating conditions or disorders which are prevented or ameliorated by histamine-3 receptor ligands, a method of using such compounds and compositions, and a preparation process therefor. SOLUTION: There are provided a compound of formula (I), pharmaceutically acceptable salts, esters, amides or prodrugs thereof. Pharmaceutical compositions, usage and preparation process therefor are also provided. In the formula, each symbol is defined specifically. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
The instant invention discloses a process for the synthesis of substituted indole cell proliferation inhibitors, comprising the reaction of 1-formyl indoline with clorosulfonic acid and thionyl chloride, followed by reaction with an aromatic amine.
Abstract:
The invention relates to a process for preparing 2-methylpyrrolidine and, more particularly, specific enantiomers of 2-methylpyrrolidine. Novel intermediates also are described.
Abstract:
Compounds of formula (I) are useful in treating conditions or disorders prevented by or ameliorated by histamine-3 receptor ligands. Also disclosed are pharmaceutical compositions comprising the histamine-3 receptor ligands, methods for using such compounds and compositions, and a process for prepari ng compounds within the scope of formula (I).
Abstract:
The present invention relates to an improved process for the preparation of nicotinic acids represented by the following structural formula (I): I which are prepared by reacting a nicotinic amide compound having the formula: under acidic conditions with a nitrite salt. In the process of the invention have the groups R1, R2, and R3, in the compounds are independently selected from the group consisting of hydrogen, and halogen atoms and R4 is selected from the group consisting of hydrogen, lower alkyl and aryl. The process provides the nicotinic acid compounds in improved yields.
Abstract:
The present invention relates to an improved process for the preparation of nicotinic acids represented by the following structural formula (I): I which are prepared by reacting a nicotinic amide compound having the formula: under acidic conditions with a nitrite salt. In the process of the invention have the groups R1, R2, and R3, in the compounds are independently selected from the group consisting of hydrogen, and halogen atoms and R4 is selected from the group consisting of hydrogen, lower alkyl and aryl. The process provides the nicotinic acid compounds in improved yields.
Abstract:
The present invention relates to an improved process for the preparation of nicotinic acids represented by the following structural formula (I): I which are prepared by reacting a nicotinic amide compound having the formula: under acidic conditions with a nitrite salt. In the process of the invention have the groups R1, R2, and R3, in the compounds are independently selected from the group consisting of hydrogen, and halogen atoms and R4 is selected from the group consisting of hydrogen, lower alkyl and aryl. The process provides the nicotinic acid compounds in improved yields.
Abstract:
The present invention relates to an improved process for the preparation of nicotinic acids represented by structural formula (I) which are prepared by reacting a nicotinic amide compound having formula (a) under acidic conditions with a nitrite salt. In the process of the invention the groups R1, R2, and R3, in the compounds are independently selected from the group consisting of hydrogen and halogen atoms, and R4 is selected from the group consisting of hydrogen, lower alkyl and aryl. The process provides the nicotinic acid compounds in improved yields.
Abstract:
Compounds of formula (I) are useful in treating conditions or disorders prevented by or ameliorated by histamine-3 receptor ligands. Also disclosed are pharmaceutical compositions comprising the histamine-3 receptor ligands, methods for using such compounds and compositions, and a process for preparing compounds within the scope of formula (I).