On November 28, 1990, Young, Robert N.; Gauthier, Jacques Yves; Zamboni, Robert; Belley, Michel L. published a patent.Application In Synthesis of Methyl 3-(1,3-dioxolan-2-yl)benzoate The title of the patent was Preparation of diarylstyrylquinoline diacids as leukotriene antagonists. And the patent contained the following:
Title compounds I [R1 = 7-Cl, 7-MeO, 6-F3C, 7-F3C, 6-MeSO2, H, 6,7-Cl2; Y = CH:CH, CH2CH2, CH2O, CHMeCH2; A = HO2C(CH2)2S, Me2NCO(CH2)2S, 3-(HO2C)C6H4S, Me3CNHCO(CH2)2S, 4-carboxy-2-pyridyl, [(1-adamantylamino)carbonylethyl]thio, 1-tetrazol-5-ylmethylthio, etc.; B = 2-(HO2C)C6H4CH2CH2, 3-(HO2C)C6H4, 5-carboxy-2-thiophenyl, HO2CCH2CHMe(CH2)2, 6-carboxy-2-pyridyl, 2-(Me3CNHCO)C6H4S, 3-[(1-tetrazol-5-yl)methyl]phenyl, etc.] and their salts, useful as inhibitors of leukotriene biosynthesis, antiasthmatic, antiallergic, antiinflammatory, and cytoprotective agents (no data, assays described), are prepared I may also be used to treat erosive gastritis, inflammatory bowel disease, prevention of SRA-release (no data). To a suspension of [(7-chloroquinolin-2-yl)methyl]triphenylphosphonium bromide in THF was added BuLi, the reaction mixture was stirred at -78° and Me 2-[3-[2-(methoxycarbonyl)ethylthio]-3-(3-formylphenyl)propyl]benzoate [preparation from 3-(BrCH2)C6H4CN given] added, the mixture warmed to room temperature to give I [R1 = 7-Cl; Y = CH:CH; A = HO2C(CH2)2S; B = 2-(HO2C)C6H4CH2CH2] (II) as the di-Me ester, which in THF and MeOH was saponified to give II.2Na salt. A capsule, injectable suspension and tablet formulations comprising I are given. Pharmaceutical composition of I may comprise an addnl. active ingredient such as nonsteroidal antiinflammatory drug, peripheral analgesic, cyclooxygenase inhibitor, etc. The experimental process involved the reaction of Methyl 3-(1,3-dioxolan-2-yl)benzoate(cas: 124038-36-4).Application In Synthesis of Methyl 3-(1,3-dioxolan-2-yl)benzoate
The Article related to arylstyrylquinoline diacid preparation leukotriene antagonist, cytoprotection arylstyrylquinoline diacid, eye antiinflammatory arylstyrylquinoline diacid, antiasthmatic arylstyrylquinoline diacid, srsa inhibitor arylstyrylquinoline diacid preparation and other aspects.Application In Synthesis of Methyl 3-(1,3-dioxolan-2-yl)benzoate
Referemce:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem