Regio- and stereoselective synthesis of constrained enantiomeric β-amino acid derivatives
作者:Zsolt Szakonyi、Tamás A. Martinek、Reijo Sillanpää、Ferenc Fülöp
DOI:10.1016/j.tetasy.2008.09.026
日期:2008.10
Chlorosulfonylisocyanate addition to (−)- and (+)-apopinene furnished monoterpene-fused β-lactams in highly regio- and stereospecific reactions. β-Lactams 5 and 13 exhibited reactivities similar to those of the cycloalkane-fused analogs and were easily converted to the β-amino acid and its protected derivatives. The base-catalyzed isomerization of the cis-amino ester afforded the corresponding trans-amino
Chiral cyclic beta-amino acids and their derivates, pharmaceutical compositions containing them and the use of such compounds
申请人:Bioblocks Magyarország Gyógyszerkémiai
És Fejleszto KFT
公开号:EP2102147B1
公开(公告)日:2011-06-22
Chiral Cyclic Beta-Amino Acids and their Derivatives, Pharmaceutical Compositions Containing Them and the Use of Such Compounds
申请人:Fulop Ferenc
公开号:US20100081717A1
公开(公告)日:2010-04-01
The invention relates to chiral cyclic β-amino acids of Formula (I) and their salts formed with pharmaceutically acceptable acids or bases, wherein the main meanings of the substituents are as follows: R stands for C
1-4
Alk; X stands for —COOH, —CONH
2
, —CONH(C
1-4
Alk), —CON(C
1-4
Alk)
2
, —COO(C
1-4
Alk), —COPhe-O-(C
1-4
Alk) or —CH
2
OH; Y stands for —NH
2
, —NHBoc, —NHFmoc, —NH(C
1-4
Alk), —N(C
1-4
Alk)
2
, —NHCH
2
Ph, or Ar—NH—C(=X
0
)—N(R
0
)— wherein Ar stands for a phenyl group substituted by C
1-4
alkoxy or halogen, X
0
stands for O or S, and R
0
stands for hydrogen or benzyl; and X+Y stands for —CONH— vagy —CON(Boc)-; with the proviso that when X stands for —COOH, then Y may be only different from —NH
2
. The invention also relates to pharmaceutical compositions having multidrug-resistance reversing effect that contain one or more compound(s) of Formula (I) or a salt thereof and inert pharmaceutical carriers and/or auxiliary agents. The invention also relates to carboxylic acids of Formula (XX) and their salts.