Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Bacterium or component thereof or substance produced by said...
Patent
1980-05-22
1982-03-02
Bond, Robert T.
Drug, bio-affecting and body treating compositions
Antigen, epitope, or other immunospecific immunoeffector
Bacterium or component thereof or substance produced by said...
2602393P, A61K 31535, C07D49818
Patent
active
043178219
ABSTRACT:
Novel maytansinoids of the formula: ##STR1## wherein Y is H or Cl, and R is C.sub.2-15 alkyl, phenyl-C.sub.1-4 alkyl, pyridyl-C.sub.1-4 alkyl, imidazolyl-C.sub.1-4 alkyl, indolyl-C.sub.1-4 alkyl, furyl-C.sub.1-4 alkyl or thienyl-C.sub.1-4 alkyl, said R group being substituted by hydroxyl, halogen or C.sub.1-5 alkanoyloxy at its .alpha.- and/or .beta.-position, have antimitotic, antitumor and antimicrobial activities.
REFERENCES:
patent: 4137230 (1979-01-01), Hashimoto et al.
Kupchan et al., I "J. Am. Chem. Soc." vol. 97, No. 18, (1975) pp. 5294-5295.
Kupchan et al., II "J. Med. Chem." vol. 21, No. 1 (1978) pp. 31-37.
Higashide et al., "Nature" vol. 270 pp. 721-721 (1977).
Akimoto Hiroshi
Miyashita Osamu
Bond Robert T.
Takeda Chemical Industries Ltd.
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