The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 01, 1992
Filed:
Mar. 12, 1991
Naoki Abe, Yaizu, JP;
Nobuyasu Enoki, Yaizu, JP;
Yasukazu Nakakita, Yaizu, JP;
Hideaki Uchida, Yaizu, JP;
Ryoichi Sato, Yaizu, JP;
Suguru Takeo, Yaizu, JP;
Nobuhiro Watanabe, Yaizu, JP;
Sapporo Breweries Limited, Tokyo, JP;
Abstract
Disclosed are novel HP530 compounds, their derivatives or their pharmaceutically permissible salts, a process for preparing them and an antitumor substances containing them as active ingredient. The HP530 compounds and their derivatives expressed by the general formula below can be prepared by cultivating Streptomyces sp. HP530 (FERM BP-2786) or and chemically derivation. ##STR1## where X is a C.sub.2 -C.sub.4 acyl group or a hydrogen atom, Y is a C.sub.2 -C.sub.4 acyl group or a hydrogen atom and Z is a group expressed by the formula (II), (III) or (IV). ##STR2##
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