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:
Jan. 28, 1997
Filed:
Sep. 23, 1994
Yukio Sugimura, Tokyo, JP;
Kimio Iino, Tokyo, JP;
Yoshio Tsujita, Tokyo, JP;
Yoko Shimada, Tokyo, JP;
Tomowo Kobayashi, Tokyo, JP;
Takeshi Kagasaki, Iwaki, JP;
Sankyo Company, Limited, Tokyo, JP;
Abstract
A compound of the formula ##STR1## in which: R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen atoms and groups of formula R.sup.3 --CO--, wherein R.sup.3 represents a group selected from the group consisting of unsubstituted alkyl groups having from 9 to 20 carbon atoms; substituted alkyl groups having from 10 to 20 carbon atoms; unsubstituted alkenyl groups having from 9 to 20 carbon atoms; substituted alkenyl group having from 10 to 20 carbon atoms; unsubstituted alkynyl groups having from 8 to 10 carbon atoms; and substituted alkynyl groups having from 8 to 10 carbon atoms wherein R.sup.1 and R.sup.2 are not both hydrogen atoms or acetyl groups. The compounds have antitumor activity.