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Yoshida; Keizo
Suita, JP
No. of patents:

Patent Number Title Of Patent Date Issued
4661352 WS 7739 substances, their preparation and pharmaceutical composition containing the same April 28, 1987
This invention relates to a biologically active WS-7739-A substance and a biologically active WS-7739-B substance which have pharmacological activities and are useful for the treatment of asthma, thrombosis and the alike.
4643990 N-acyl peptide, processes for their preparation and pharmaceutical compositions thereof February 17, 1987
N-acylpeptides are disclosed of the formula: ##STR1## wherein R.sup.1 is alkanoyloxy or alkenoyloxy; R.sup.2 is alkyl or alkenyl; R.sup.3 and R.sup.4 are each lower alkyl, hydroxy(lower)alkyl, ar(lower)alkyl, esterified carboxy(lower)alkyl, carboxy(lower)alkyl, protected amino(lo
4436726 N-Acylpeptide compound, processes for the preparation thereof and the pharmaceutical composition March 13, 1984
This invention relates to new N-acylpeptide compounds of immunological activity, said compounds being of the formula: ##EQU1## wherein R.sup.1 and R.sup.2 are each alkyl or alkenyl;R.sup.3 is hydrogen, lower alkyl, hydroxy(lower)alkyl, heterocyclic(lower)alkyl or ar(lower)alkyl, wher

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