Abstract: A beta-alanine derivative of the formula (I) wherein R1 is hydrogen atom or an amino protective group; A is a lower alkylene group or a lower alkenylene group; R2 is hydrogen atom or an amino group which may be substituted with an acyl group; R3 is hydrogen atom or an aryl or aralkyl group which may be substituted with one or more of hydroxy and/or lower alkoxy, a moiety represented by the formula (II), which is a bivalent N-containing 6- to 8-membered heterocyclic group, or a pharmaceutically acceptable salt thereof.

Abstract: The present invention relates to compounds of the formula (I) wherein X1 is wherein R1, R2 and R10 are independently hydrogen or a suitable substituent; R11 and R12 are independently hydrogen or a suitable substituent; R is unsaturated 5 to 6-membered heteromonocyclic group; A is direct bond or —NH—; X2 is monocyclic arylene, unsaturated 5 to 6-membered heteromonocyclic group or cycloalkenylene; Y is bivalent group selected from ethylene, trimethylene and vinylene, wherein CH2 is optionally replaced by NH or O, and CH is optionally replaced by N; and Z is —(CH2)n—, —CO—(CH2)m—, —CH═CH— or —CO—NH—, wherein n is 1, 2 or 3 and m is 1 or 2, or a salt thereof. The compounds of the present invention inhibit apolipoprotein B (Apo B) secretion and are useful as a medicament for prophylactic and treatment of diseases or conditions resulting from elevated circulating levels of Apo B.

Abstract: The present invention relates to compounds of the formula (I) wherein R1 and R2 are each independently lower alkyl lower alkenyl, acyl, amino, lower alkoxy, lower cycloalkyloxy, aryl, aryloxy, sulfooxy, mercapto, sulfo, hydrogen, halogen, nitro, cyano or hydroxy, or may form a ring structure; Q1 is N or CH; L is optionally substituted unsaturated 3 to 10-membered heterocyclic group; X is optionally substituted monocyclic arylene or monocyclic heteroarylene; Y is -(A1)m-(A2)n-(A4)k-; Z is directbond, —CH2-, —NH— or —O—; and R is hydrogen or lower alkyl, or a salt thereof The compounds of the present invention inhibit apolipoprotein B (Apo B) secretion and are useful as a medicament for prophylactic and treatment of diseases or conditions resulting from elevated circulating levels of Apo B.

Abstract: The present invention relates to processes for the preparation of &bgr;-alanine derivative shown by following formula (I): 1

Abstract: The trihydrates of &bgr;-alanine of the formula Are disclosed. Also method of antogonizing glycoprotein IIb/IIIa activity using these compounds is also disclosed.

Abstract: A beta-alanine derivative of the formula (I) wherein R1 is hydrogen atom or an amino protective group; A is a lower alkylene group or a lower alkenylene group; R2 is hydrogen atom or an amino group which may be substituted with an acyl group; R3 is hydrogen atom or an aryl or aralkyl group which may be substituted with one or more of hydroxy and/or lower alkoxy, a moiety represented by the formula (II), which is a bivalent N-containing 6- to 8-membered heterocyclic group, or a pharmaceutically acceptable salt thereof.