Tokyo University of Agriculture and Technology

Ritsuko Narasaki

Keiji Hasumi

Keiko Hasegawa

Yoshikazu Kitano

Hideo Ohishi

Haruki Koide

A triprenyl phenol compound represented by the following formula (II) and (III) and having a thrombolysis-enhancing activity, and an efficient method for producing the triprenyl phenol compound. In formula (II) and (III), Rrepresents an aromatic group having as a substituent or as a part of a substituent at least one member selected from the group consisting of a carboxyl group, a hydroxyl group, a sulfonic acid group and a secondary amino group, or an aromatic group which comprises a secondary amino group and may comprise nitrogen; Rin the general formula (III) represents an aromatic amino acid residue represented by the general formula (III-1) below; X represents &#x2014;CHY&#x2014;(CH)Z; and Y and Z are respectively &#x2014;H or &#x2014;OH or together form a single bond: (III-1) wherein Rrepresents a hydroxyl group which may be present or absent; and n represents an integer of 0 or 1. 

Triprenyl phenol compound, process for production of triprenyl phenol compound, and thrombolysis enhancer

The present invention provides a triprenyl phenol compound represented by the following formula (II) and (III) and having a thrombolysis-enhancing activity, and an efficient method for producing the triprenyl phenol compound. In formula (II) and (III), Rrepresents an aromatic group having as a substituent or as a part of a substituent at least one member selected from the group consisting of a carboxyl group, a hydroxyl group, a sulfonic acid group and a secondary amino group, or an aromatic group which comprises a secondary amino group and may comprise nitrogen; Rin the general formula (III) represents an aromatic amino acid residue represented by the general formula (III-1) below; X represents &#x2014;CHY&#x2014;(CH)Z; and Y and Z are respectively &#x2014;H or &#x2014;OH or together form a single bond: (III-1) wherein Rrepresents a hydroxyl group which may be present or absent; and n represents an integer of 0 or 1. 

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Fuchu, Japan

Ritsuko Narasaki