Practical and Sustainable Synthesis of Optically Pure Levocabastine, a H1 Receptor Antagonist

A practical and sustainable method for the synthesis of levocabastine hydrochloride (1), a H1 receptor antagonist for the treatment of allergic conjunctivitis, that can be applied to the industrial production of the compound has been developed. Substantial improvements over the previously reported p...

Full description

Bibliographic Details
Main Authors: Sung Kwon Kang, Dong Hyuk Nam, Jaeseung Ahn, Jaemin Lee, Jaehoon Sim, Jeeyeon Lee, Young-Ger Suh
Format: Article
Language:English
Published: MDPI AG 2017-11-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/22/11/1971
_version_ 1811220930477686784
author Sung Kwon Kang
Dong Hyuk Nam
Jaeseung Ahn
Jaemin Lee
Jaehoon Sim
Jeeyeon Lee
Young-Ger Suh
author_facet Sung Kwon Kang
Dong Hyuk Nam
Jaeseung Ahn
Jaemin Lee
Jaehoon Sim
Jeeyeon Lee
Young-Ger Suh
author_sort Sung Kwon Kang
collection DOAJ
description A practical and sustainable method for the synthesis of levocabastine hydrochloride (1), a H1 receptor antagonist for the treatment of allergic conjunctivitis, that can be applied to the industrial production of the compound has been developed. Substantial improvements over the previously reported procedure are achieved via efficient preparation of an optically active key intermediate (5) without chiral resolution and with a more effective detosylation, which complements the previous procedure. Notably, our process requires no chromatographic purification and provides levocabastine hydrochloride in greater than 99.5% purity in a 14.2% overall yield.
first_indexed 2024-04-12T07:50:24Z
format Article
id doaj.art-cac33f4698da42f5a8d070136ce194d8
institution Directory Open Access Journal
issn 1420-3049
language English
last_indexed 2024-04-12T07:50:24Z
publishDate 2017-11-01
publisher MDPI AG
record_format Article
series Molecules
spelling doaj.art-cac33f4698da42f5a8d070136ce194d82022-12-22T03:41:36ZengMDPI AGMolecules1420-30492017-11-012211197110.3390/molecules22111971molecules22111971Practical and Sustainable Synthesis of Optically Pure Levocabastine, a H1 Receptor AntagonistSung Kwon Kang0Dong Hyuk Nam1Jaeseung Ahn2Jaemin Lee3Jaehoon Sim4Jeeyeon Lee5Young-Ger Suh6College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, KoreaDepartment of Synthetic Chemistry, Chong Kun Dang Research Institute, 315-20, Dongbaekjukjeon-daero, Giheung-gu, Yongin-si 16995, Gyeonggi-do, KoreaDepartment of Synthetic Chemistry, Chong Kun Dang Research Institute, 315-20, Dongbaekjukjeon-daero, Giheung-gu, Yongin-si 16995, Gyeonggi-do, KoreaDepartment of Synthetic Chemistry, Chong Kun Dang Research Institute, 315-20, Dongbaekjukjeon-daero, Giheung-gu, Yongin-si 16995, Gyeonggi-do, KoreaCollege of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, KoreaCollege of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, KoreaCollege of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, KoreaA practical and sustainable method for the synthesis of levocabastine hydrochloride (1), a H1 receptor antagonist for the treatment of allergic conjunctivitis, that can be applied to the industrial production of the compound has been developed. Substantial improvements over the previously reported procedure are achieved via efficient preparation of an optically active key intermediate (5) without chiral resolution and with a more effective detosylation, which complements the previous procedure. Notably, our process requires no chromatographic purification and provides levocabastine hydrochloride in greater than 99.5% purity in a 14.2% overall yield.https://www.mdpi.com/1420-3049/22/11/1971levocabastineanti-histamineH1 receptor antagonist
spellingShingle Sung Kwon Kang
Dong Hyuk Nam
Jaeseung Ahn
Jaemin Lee
Jaehoon Sim
Jeeyeon Lee
Young-Ger Suh
Practical and Sustainable Synthesis of Optically Pure Levocabastine, a H1 Receptor Antagonist
Molecules
levocabastine
anti-histamine
H1 receptor antagonist
title Practical and Sustainable Synthesis of Optically Pure Levocabastine, a H1 Receptor Antagonist
title_full Practical and Sustainable Synthesis of Optically Pure Levocabastine, a H1 Receptor Antagonist
title_fullStr Practical and Sustainable Synthesis of Optically Pure Levocabastine, a H1 Receptor Antagonist
title_full_unstemmed Practical and Sustainable Synthesis of Optically Pure Levocabastine, a H1 Receptor Antagonist
title_short Practical and Sustainable Synthesis of Optically Pure Levocabastine, a H1 Receptor Antagonist
title_sort practical and sustainable synthesis of optically pure levocabastine a h1 receptor antagonist
topic levocabastine
anti-histamine
H1 receptor antagonist
url https://www.mdpi.com/1420-3049/22/11/1971
work_keys_str_mv AT sungkwonkang practicalandsustainablesynthesisofopticallypurelevocabastineah1receptorantagonist
AT donghyuknam practicalandsustainablesynthesisofopticallypurelevocabastineah1receptorantagonist
AT jaeseungahn practicalandsustainablesynthesisofopticallypurelevocabastineah1receptorantagonist
AT jaeminlee practicalandsustainablesynthesisofopticallypurelevocabastineah1receptorantagonist
AT jaehoonsim practicalandsustainablesynthesisofopticallypurelevocabastineah1receptorantagonist
AT jeeyeonlee practicalandsustainablesynthesisofopticallypurelevocabastineah1receptorantagonist
AT younggersuh practicalandsustainablesynthesisofopticallypurelevocabastineah1receptorantagonist