Mitsubishi Chemical Industries Limited

Nippon Shinyaku Company, Ltd.

Kazuo Wagatsuma

Yoshiharu Morita

Tadashi Shirasaka

Junichi Ohya

Kenzo Omata

Hiroshi Enomoto

Makio Kobayashi

Hiroaki Munakata

Makoto Tsurufuji

Shigeru Sato

Makoto Sugiyama

Iwao Morita

Yoshihisa Shibata

Shingo Matsumura, Deceased

Phenylacetic acid derivatives of the formula: ##STR1## wherein R.sup.1 is hydrogen or ##STR2## wherein R.sup.5 is an alkyl group of 1-6 carbon atoms or an aryl group; R.sup.2 and R.sup.3 are independently hydrogen or an alkyl group of 1-4 carbon atoms; R.sup.4 is hydrogen or an alkyl group of 1-4 carbon atoms, have been found to possess immunomodulating activity.

Immunomodulating agent

Glutamine derivatives and non-toxic salts thereof have been found to have immunomodulating activities.

Glutamine derivatives

Amino acid derivatives of 6-(2-amino-2-arylacetamido)penicillanic acids are prepared and shown to be useful as antibacterial agents.

Amino acid derivatives of 6-(2-amino-2-arylacetamido)penicillanic acids

Amino acid derivatives of 6-(2-amino-2-arylacetamido) penicillanic acids are prepared and shown to be useful as antibacterial agents.

Amino acid derivatives of 6-(2-amino-2-arylacetamido) penicillanic acids

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Yokohama, Japan

Kazuo Wagatsuma