| (84) |
Designated Contracting States: |
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AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU NL PT SE |
| (30) |
Priority: |
23.07.1997 WO PCT/IB97/00916
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| (43) |
Date of publication of application: |
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24.05.2000 Bulletin 2000/21 |
| (73) |
Proprietor: PFIZER INC. |
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New York, N.Y. 10017 (US) |
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| (72) |
Inventors: |
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- HONDA, Masanori
Chita-gun,
Aichi-ken 470-2393 (JP)
- KADOI, Hiroshi
Chita-gun,
Aichi-ken 470-2393 (JP)
- MORITA, Hiromasa
Chita-gun,
Aichi-ken 470-2393 (JP)
- NAGAKURA, Isao
Chita-gun,
Aichi-ken 470-2393 (JP)
|
| (74) |
Representative: McMunn, Watson Palmer et al |
|
Pfizer Limited
Patents Department
Ramsgate Road Sandwich, Kent CT13 9NJ Sandwich, Kent CT13 9NJ (GB) |
| (56) |
References cited: :
EP-A- 0 676 236
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WO-A-95/22552
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- M.HONDA ET AL.: "Deprotection of Allyl Groups with Sulfinic Acids and Palladium Catalyst."
JOURNAL OF ORGANIC CHEMISTRY., vol. 62, no. 25, 12 December 1997, pages 8932-8936,
XP002073924 EASTON US
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