Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1999-07-08
2000-12-26
Owens, Amelia
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
549451, C07D31700
Patent
active
061662275
ABSTRACT:
The glycinamide of the formula (I) ##STR1## is reacted with the dioxolane of the formula (II) ##STR2## wherein L is a leaving group such as iodo, bromo, alkylsulfonyloxy, or arylsulfonyloxy to give the dioxolane of the formula (III) ##STR3## Treatment of (III) gives the dioxolane pentanoic acid IV ##STR4## which can be converted to (S)-2-amino-6,6-dimethoxyhexanoic acid, methyl ester.
REFERENCES:
patent: 4152336 (1979-05-01), Kuroki et al.
patent: 4376864 (1983-03-01), Drauz et al.
patent: 4397677 (1983-08-01), Stach
patent: 4424370 (1984-01-01), Kleeman et al.
patent: 4591601 (1986-05-01), Maryanoff et al.
patent: 5332826 (1994-07-01), Buckland
patent: 5508272 (1996-04-01), Robl
patent: 5670666 (1997-09-01), Hou et al.
Frankel et al, "Poly-condensation of a .alpha.-Amino Acid Esters . . . " JACS, vol. 64, p. 2264-2268 (1942).
Almeida et al, "New Enantioselective Synthesis . . . " Tetrahedron Asymmetry, vol. 3, No. 11, p. 1431-1440 (1992).
Meyers et al, "A One Step Synthesis of Pseudoephedrine Glycinamide . . . ", Tetrahedron Letters, vol. 36, No. 26, p. 4555-4558 (1995).
Rumbero et al., Bioorganic & Medicinal Chem., vol. 3, p. 1237-1240 (1995).
Sham et al., J. Chem. Soc., Chem. Commun., p. 1792-1793 (1987).
Johnson et al., J. Org. Chem., vol. 27, p. 798-802 (1962).
Godfrey Jr. Jollie D.
Kronenthal David R.
Schwinden Mark D.
Bristol-Myers Squibb Co.
Davis Stephen B.
Owens Amelia
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