Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1992-03-02
1994-05-17
Cintins, Marianne M.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568585, 568586, 549419, 549426, 560 9, 560 12, 560 20, 560 21, 560 23, 560 44, 560 81, 560 82, 560106, 560192, 560193, 560227, 560250, 560254, 562 42, 564440, 564442, 564443, C07C22902, C07C 6501, C07C 6510, C07C21144, C07C 43225, C07C 4323, C07C30919, C07C30920
Patent
active
053129997
ABSTRACT:
Propoxybenzene derivatives represented by the following formula ##STR1## wherein Ra represents a nitro group, an amino group which may have a protecting group or an --NHCH.dbd.C(COO--C.sub.1-6 -Alkyl).sub.2 group, Rb represents a hydrogen atom, a protecting group for the hydroxyl group or a substituted sulfonyl group and Xa and Xb, which may be the same or different, each represents a halogen atom, and processes for preparation thereof are disclosed. These derivatives are useful in preparing antibacterial agents.
REFERENCES:
patent: 4393206 (1983-07-01), Uhrhan et al.
Iwata et al., Chem. Abstracts, vol. 107; 236723s; "Preparation of fluoropyridobenzoxazine carboxylic acids as med. bactericides" (1987).
Chemical Abstracts Formula Index, vol. 107, p. 757F, 1987.
Hayakawa et al., Chem Abstracts, vol. 101; 55108a; "Tricyclic Compounds", p. 625, 1984.
Ebata Tutomu
Fujiwara Toshihiro
Cintins Marianne M.
Daiichi Seiyaku Co., Ltd.
Page Margaret J.
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