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Junning Lee

Schering-Plough

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Publication

Featured researches published by Junning Lee.

Tetrahedron Letters | 2001

A regioselective PCl5 mediated dehydration for preparing Δ9,11 corticosteroids

Xiaoyong Fu; Chou-Hong Tann; Tiruvettipuram K. Thiruvengadam; Junning Lee; Cesar Colon

Abstract A regioselective PCl 5 -induced dehydration of 11α-hydroxy corticosteroids was invented to provide the corresponding Δ 9,11 double bond trienes in excellent yield (>90%) with 99:1 regioisomeric ratio to the Δ 11,12 isomers. A syn -elimination mechanism was proposed for this reaction.

Archive | 1992

Substituted beta-lactam compounds useful as hypocholesterolemic agents and processes for the preparation thereof

Duane A. Burnett; John W. Clader; Tiruvettipuram K. Thiruvengadam; Chou-Hong Tann; Junning Lee; Timothy Mcallister; Cesar Colon; Derek H. R. Barton; Ronald Breslow; Sundeep Dugar; Wayne Vaccaro

Archive | 1994

Process for the stereospecific synthesis of azetidinones

Tiruvettipuram K. Thiruvengadam; Chou-Hong Tann; Junning Lee; Timothy Mcallister; Anantha Sudhakar

Archive | 1991

Process for preparing albuterol, acetal, hemi-acetal, and hydrates of arylglyoxal intermediates thereof

Chou-Hong Tann; Tiruvettipuram K. Thiruvengadam; John S. Chiu; Michael J. Green; Timothy Mcallister; Cesar Colon; Junning Lee

Archive | 1995

Process for preparing delta 9, 11 and 21-chlorocorticosteroids

Xiaoyong Fu; Tiruvettipuram K. Thiruvengadam; Chou-Hong Tann; Junning Lee; Cesar Colon

Organic Process Research & Development | 2003

An Efficient One-Pot Process for 10-Bromo-8-chloro-5,6-dihydro-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one, an Intermediate to SCH 66336

Xiaoyong Fu; Timothy Mcallister; Xiongwei Shi; Tiruvettipuram K. Thiruvengadam; Chou-Hong Tann; Junning Lee

Archive | 2005

Process for preparing 21-kloorikortikosteroideja

Xiaoyong Fu; Tiruvettipuram K. Thiruvengadam; Chou-Hong Tann; Junning Lee; Cesar Colon

Archive | 1999

BOR-ARYLETHANOLAMINE COMPLEX, ACETALES AND HEMIACETALES AND METHOD FOR OBTAINING ARYLETHANOLAMINE, ACETALES, ?HEMIACETALES AND HYDRATES OF ARYLGLYOXAL INTERMERIARIES

Chou-Hong Tann; Thiruvengadam Tiruvettipuram K; John S. Chiu; Michael J. Green; Mcallister Timothy L; Cesar Colon; Junning Lee

Archive | 1996

Asendatud ß-laktaam-ühendid kolesterooli sisaldust alandavate toimeainetena ja nende saamise meetodid

Duanne A Burnett; John W. Clader; Tiruvettipuram K. Thiruvengadam; Chou-Hong Tann; Junning Lee; Timothy Mcallister; Cesar Colon; Derek H. R. Barton; Ronald Breslow; Sundeep Dugar; Wayne Vaccaro

Archive | 1995

Process for the preparation of delta 9, 11 and 21 - corticosteroids chlorine.

Cesar Colon; Xiaoyong Fu; Junning Lee; Chou-Hong Tann; Tiruvettipuram K. Thiruvengadam

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Chou-Hong Tann

Schering-Plough

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Tiruvettipuram K. Thiruvengadam

Merck

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Cesar Colon

Schering-Plough

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John W. Clader

Schering-Plough

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Duane A. Burnett

Merck

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Derek H. R. Barton

Schering-Plough

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Ronald Breslow

Schering-Plough

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Sundeep Dugar

Schering-Plough

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Wayne Vaccaro

Schering-Plough

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Xiaoyong Fu

Schering-Plough

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