219741-10-3

Upstream product

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Relevant academic research and scientific papers

Diamine derivatives and pharmaceutical containing the same

PCT No. PCT/JP98/03054 Sec. 371 Date Mar. 5, 1999 Sec. 102(e) Date Mar. 5, 1999 PCT Filed Jul. 7, 1998 PCT Pub. No. WO99/02520 PCT Pub. Date Jan. 21, 1999This invention relates to a diamine derivative represented by the following formula (1) or a salt thereof. wherein R1 represents H, OH, an aralkyloxy group or a halogen atom; R2 represents H or a lower alkyl group; A represents -C(R3)=CH-, -CH=N-, -N(R4)-, R3 being H or OH, R4 being a lower alkyl group or an alkoxyalkyl group, -O-, or -S-; B represents a single bond, -C(R5)(R6)-(CH2)k-, R5 and R6 being H or a lower alkyl group, and k being a value of from 0 to 2, -S(O)qCH(R7), or -CH=CH-; E represents a single bond or -(CH2)3-; W and Y individually represent -CH2- or -CO-; Z represents O or S; and m is a value of 2 or 3, and n is a value of from 1 to 4; with the proviso that E is -(CH2)3- when B is a single bond and E is a single bond when B is a group other than a single bond. The diamine derivatives or salts thereof have both antileukotrienic action and antihistaminic action and are low in brain penetration, and are hence useful as asthma preventives and curatives.