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US 5,206,418 AGranted
Amino-tetrahydronaphthalene derivatives
AssigneeTanabe Seiyaku Co., Ltd.
InventorsHideo Nakai, Toyoharu Yamashita, Harumichi Kohno, Yasuhiko Sasaki, Akio Odawara
Life of this patent
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Abstract
The invention relates to aminotetrahydronaphthalene derivatives which are intermediates for the preparation of sulfonylaminotetrahydronaphthalenes.
Claims2
An aminotetrahydronaphthalene derivative of the formula:
- ##STR67## wherein R.sup.2 is hydroxymethyl group, carboxyl group, a lower alkoxycarbonyl group or a group of the formula:
- ##STR68## wherein R.sup.3 is hydrogen atom or a lower alkyl group, R.sup.4 is a lower alkoxycarbonyl-lower alkyl group or carboxy-lower alkyl group, and m and n are different and are 1 or 2, or a mineral or organic acid salt thereof.
An aminotetrahydronaphthalene derivative which is:
- ethyl 6-amino-5,6,7,8-tetrahydronaphthalene-2-acetate, or a mineral or organic acid salt thereof;
- 2-(6-amino-5,6,7,8-tetrahydronaphthalene-2-yl)ethanol, or a mineral or organic acid salt thereof;
- or methyl 7-amino-5,6,7,8-tetrahydronaphthalene-2-acetate, or a mineral or organic acid salt thereof.
Dependencies are inferred from the claim text.