Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2005-02-01
2005-02-01
Trinh, Ba K. (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C549S520000, C549S551000, C549S563000
Reexamination Certificate
active
06849750
ABSTRACT:
Disclosed are intermediates and processes for preparing epoxides of the formula:where R and PROT are defined herein. These epoxides are useful as intermediates in the production of biologically active compounds, i.e., in the production of pharmaceutical agents.
REFERENCES:
patent: 5481011 (1996-01-01), Chen et al.
patent: 5482947 (1996-01-01), Talley et al.
patent: 5508294 (1996-04-01), Vazquez et al.
patent: 5510349 (1996-04-01), Talley et al.
patent: 5510388 (1996-04-01), Vazquez et al.
patent: 5521219 (1996-05-01), Vazquez et al.
patent: 5583238 (1996-12-01), Ng et al.
patent: 5610190 (1997-03-01), Talley et al.
patent: 5639769 (1997-06-01), Vazquez et al.
patent: 5760036 (1998-06-01), Gordon et al.
patent: 5760064 (1998-06-01), Vazquez et al.
patent: 5965588 (1999-10-01), Vazquez et al.
patent: 20020016320 (2002-02-01), Fang et al.
patent: 20020019403 (2002-02-01), Hom et al.
patent: 20020128255 (2002-09-01), Beck et al.
patent: 20020143177 (2002-10-01), Beck et al.
patent: 20030096864 (2003-05-01), Fang et al.
patent: 20040044072 (2004-03-01), Tenbrink et al.
patent: 0 382 463 (1990-08-01), None
patent: WO 9833795 (1998-08-01), None
patent: WO 0202505 (2002-01-01), None
patent: WO 0202512 (2002-01-01), None
Chan et al., “Enhancement of measurement accuracy in fiber Bragg grating sensors by using digital signal processing” Optics&Laser Technology(1999) 31: pp. 299-307.
RajanBabu et al., “Carbohydrate Phosphinites as Practical Ligands in Asymmetric Catalysis: Electronic Effects and Dependence of Backbone Chirality in Rh-Catalyzed Asymmetric Hydrogenations. Systhesis of R- or S-Amino Acids Using Natural Sugars as Ligand Precursors”, J. Org. Chem(1997) 62: pp. 6012-6028.
Hauptman, et al., “Synthesis of Novel(P,S)Ligands Based o Chiral Nonracemic Episulfides. Use in Asymmetric Hydrogenation” Organometallics,(1999) 18: pp. 2061-2073.
Wang et al. “Preparation of α-Chloroketones by the Chloroacetate Claisen Reaction”, Syn. Letters(2000) 6: pp. 902-904.
Getman, et al., “Discovery of a Novel Class of Potent HIV-1 Protease Inhibitors Containing the(R)-(Hydroxyethyl)urea Isostere”, J. Med. Chem.,(1993) 36: pp. 288-291.
Parkes, et al., “Studies toward the Large-Scale Synthesis of the HIV Proteinase Inhibitor Ro 31-8959”, J. Org. Chem.,(1994) 59: pp. 3656-3664.
Barluenga et al., “The First Direct Preparation of Chiral Fictionalized Ketones and their Synthetic Uses”, J. Chem. So. Chem. Commun.,(1994) p. 969.
Raddatz, et al., “Substrate Analogue Renin Inhibitors Containing Replacements of Histidine in P2or Isosteres of the Amide Bond between P2and P2Sites”, J. Med. Chem.(1997) 34: pp. 3267-3280.
Burk, et al., “Preparation and Use of C2-Symmetric Bis(phospholanes): Production of α-Amino Acid Derivatives via Highly Enantioselective Hydrogenation Reactions”J. Am. Chem. Soc.(1993) 115: pp. 10125-10138.
McDonnell Boehnen & Hulbert & Berghoff LLP
Pharmacia & UpJohn Company LLC
Trinh Ba K.
LandOfFree
Processes and intermediates for preparing benzyl epoxides does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Processes and intermediates for preparing benzyl epoxides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Processes and intermediates for preparing benzyl epoxides will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3497040