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. 29, 1981
Filed:
Jun. 06, 1980
Applicant:
Inventors:
Osamu Miyashita, Osaka, JP;
Hiroshi Akimoto, Hyogo, JP;
Assignee:
Takeda Chemical Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
42424854 ; 2602 / ;
Abstract
Novel maytansinoids of the formula: ##STR1## wherein X is H or Cl, and R is a hydrocarbon residue or an azaheterocyclic group, said R group having at least one of water-solubilizing substituents, have antimitotic, antitumor and antimicrobial activities.