Yamanouchi Pharmaceutical Company Ltd.

Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai

Yoso Numasaki

Koichiro Takahashi

Akihiro Tanaka

Noriki Ito

Yoshinobu Nagano

Isao Ohata

Hamao Umezawa

Kiyoshi Murase

Toshiyasu Mase

Kenichi Tomioka

Takashi Osono

Yoshihiko Oka

Hideki Arima

Tsutomu Yamafuji

Hitoshi Ishida

Moto Morioka

Novel phenoxy derivatives are provided such as 6-[p-5-(1-imidazolyl)pentyloxy]phenoxy]-2,2-dimethyl-hexanoic acid, pharmaceutical compositions containing the derivative and their use in treating tumors.

6-[p-[5-(1-imidazolyl)pentyloxy]phenoxy]-2,2-dimethyl-hexanoic acid

Novel phenoxy derivatives are provided which can be represented by the general formula: ##STR1## wherein the various substituents are as defined, and include compounds such as benzyl 6-[p-[5-(1-imidazolyl)pentyloxy]phenoxy]-2,2-dimethylhexanoate. The invention also encompasses pharmaceutical compositions containing the derivatives and their use in treating tumors.

Phenoxy imidazole compound

This disclosure describes compositions of matter useful as growth inhibitors of transplanted tumors in mammals; and this invention discloses a method of inducing the regression and/or palliation of various types of tumors in mammals and which are susceptible to treatment by certain substituted phenoxy dimethyl alkanoic acids, esters or salts, said method comprising giving to said mammals an effective amount of a compound of the following formula: ##STR1## [wherein A represents an imidazolyl group or a pyridyl group,

Inhibiting growth of tumors with certain substituted phenoxy dimethyl

This disclosure describes compositions of matter useful as growth inhibitors of transplanted tumors in mammals: and this invention discloses a method of inducing the regression and/or palliation of various types of tumors in mammals (mammary cancer, liver cancer, skin cancer, etc.), said method comprising giving to said mammals an effective amount of a compound of the following formula: ##STR1## [wherein A represents an imidazolyl group or a pyridyl group, l represents 0 or 1, m and n each, which may be the same of different, represents an integer of 1 to 6, and, R represents a hydrogen atom or a lower alkyl group], or a salt thereof; the invention also discloses a method of inhibition (or prevention) of metastasis of the various cancers. The above formula compounds have low toxicity, and it is expected to apply various types of administration thereof such as oral administration and parenteral administration. In particular, it is expected that the compounds are useful as new type of medical (anti-cancer) compounds which can be administered orally.

A novel 2-hydroxyoxanilic acid derivative shown by the following formula ##STR1## or a salt thereof. This compound possesses an immunoregulatory action and is useful as an antiallergic agent, an antiasthmatic, an antirheumatic, a carcinostatic agent, a therapeutic agent for autoimmune disease, and a suppressant of rejection at the tissue transplantation and skin graft.

2-Hydroxyoxanilic acid derivatives

Aminoglycoside antibiotics biochemically transformed from Kanamycin A or Kanamycin B, which are represented by the formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group and R.sub.2 represents an amino group or a hydroxyl group.

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Saitama, Japan

Yoso Numasaki