Abstract: Disclosed are indole derivatives of formula (I) ##STR1## wherein X and Y each independently represent H or --CH.sub.2 CH.sub.2 R; R represents pyridyl or substituted amino of NR.sub.1 R.sub.2 ;R.sub.1 represents H or C.sub.1 -C.sub.6 alkyl;R.sub.2 represents 2-(3-indolyl)ethyl or aralkyl; orR.sub.1 and R.sub.2 together with the nitrogen atom to which they are attached may form an N-containing 5 to 6 membered hetero ring, an N, O-containing hetero ring, which hetero ring may be fused with benzene;n is an integer of 4 to 8;with the proviso that X and Y both do not represent H or piperizinoethyl when n is 4, or pharmaceuticaly acceptable acid addition salts thereof. They are useful as an antiulcer agent.

Abstract: Disclosed are indole derivatives of formula (I) ##STR1## wherein X and Y each independently represent H or --CH.sub.2 CH.sub.2 R;R represents pyridyl or substituted amino of NR.sub.1 R.sub.2 ;R.sub.1 represents H or C.sub.1 -C.sub.6 alkyl;R.sub.2 represents 2-(3-indolyl)ethyl or aralkyl; orR.sub.1 and R.sub.2 together with the nitrogen atom to which they are attached may form an N-containing 5 to 6 membered hetero ring, an N, O-containing hetero ring, which hetero ring may be fused with benzene;n is an integer of 4 to 8;with the proviso that X and Y both do not represent H or piperizinoethyl when n is 4, or pharmaceuticaly acceptable acid addition salts thereof. They are useful as an antiulcer agent.

Abstract: Disclosed are indole derivatives of formula (I) ##STR1## wherein Y represents H, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy or halogen;Z represents --CH.sub.2 N(R.sub.5)--;R represents H or --CH.sub.2 CH.sub.2 X where X represents pyridyl, aralkyloxy or substituted amino of NR.sub.6 R.sub.7 where R.sub.6 represents H, C.sub.1 -C.sub.6 alkyl, aralkyl, C.sub.1 -C.sub.6 alkoxycarbonyl, aralkyloxycarbonyl or halogenated C.sub.1 -C.sub.6 alkoxycarbonyl and R.sub.7 represents H, C.sub.1 -C.sub.6 alkyl or aralkyl, or together with R.sub.2 may form a ring of --(CH.sub.2).sub.n -- (n is 1-4) or ##STR2## R.sub.1 represents H, C.sub.1 -C.sub.6 alkyl, aralkyl or arylsulfonyl; R.sub.2 represents C.sub.1 -C.sub.6 alkyl, hydroxy, C.sub.1 -C.sub.6 alkoxy or aralkyloxy;R.sub.3 represents H, C.sub.1 -C.sub.6 alkyl, aralkyl or halogenated C.sub.1 -C.sub.6 alkyl;R.sub.4 and R.sub.5 may be the same or different and each represents H, C.sub.1 -C.sub.6 alkyl or aralkyl or both may together form a ring of --(CH.sub.2).sub.