Mect Corporation

Rikagaku Kenkyusho

Shigeki Nunomura

Tomoya Ogawa

Mamoru Sugimoto

Masaaki Numata

Akira Endo

Takayuki Ishii

Masayoshi Ito

Yoshiyasu Shitori

Ryoichi Osawa

Shuji Fujita

Masami Iida

Masamichi Fujita

Lewis-associated compound, process for producing the same, and

An oligosialyl-1,2-dialkyl-sn-glycerol represented by the following formula (I): ##STR1## wherein each R.sup.1 independently represents a group selected from the group consisting of a hydrogen atom and alkali metal atoms, each R.sup.2 independently represents an alkyl group having 14 to 18 carbon atoms, Ac represents an acetyl group, and n represents an integer of from 0 to 20, and synthetic intermediates for their preparation useful as an immuno-stimulating agent, an antitumor agent, and a diagnostic and therapeutic agent for cancers.

Oligosialyl-1,2-dialkyl-sn-glycerols and synthetic intermediates for

The present invention relates to ganglioside related compounds having, for example, the following formula: ##STR1## where R.sub.1 represents H or COCH.sub.3 (hereinafter abbreviated to 'AC'); R.sub.2 represents H or CH.sub.3 ; and R.sub.3 represents --OH, ##STR2## These ganglioside related compounds are useful as membrane receptors, tumor markers, cell growth controlling substances, etc., and useful for immunotherapy for cancer, etc.

Ganglioside related compounds and method of producing the same

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Wako, Japan

Shigeki Nunomura