Cyclic phosphonate ester inhibitors of microsomal triglyceride transfer protein and method

A compound which has the structure including pharmaceutically acceptable salts thereof, N-oxides thereof,

• wherein
• A is
• (1) a bond;
• (2) --O--;
• or
• (3) ##STR100## where R.sup.5 is H or lower alkyl, or R.sup.5 together with R.sup.2 forms a carbocyclic or heterocyclic ring system containing 4 to 8 members in the ring;
• B is a fluorenyl-type group of the structure ##STR101## B is an indenyl-type group of the structure ##STR102## R.sup.a and R.sup.b may be the same or different and are hydrogen, alkyl, aryl, arylalkyl or heteroaryl linked to the ring via a carbon atom;
• R.sup.5a is H, lower alkyl or aryl;
• R.sup.1 is independently alkyl, alkenyl, alkynyl, aryl, alkoxy, aryloxy, arylalkoxy, heteroaryl, heteroarylalkoxy, arylalkyl, heteroarylalkyl, cycloalkyl, cycloalkylalkyl, polycycloalkyl, polycycloalkylalkyl, cycloalkenyl, cycloheteroalkyl, heteroaryloxy, cycloalkenylalkyl, polycycloalkenyl, polycycloalkenylalkyl, heteroarylcarbonyl, amino, alkylamino, arylamino, heteroarylamino, cycloalkyloxy, cycloalkylamino, all optionally substituted through available carbon atoms with 1, 2, 3 or 4 groups selected from hydrogen, halo, alkyl, halo-alkyl, alkoxy, haloalkoxy, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, cycloheteroalkyl, cycloheteroalkylalkyl, aryl, heteroaryl, arylalkyl, arylcycloalkyl, arylalkenyl, arylalkynyl, aryloxy, aryloxyalkyl, arylalkoxy, arylazo, heteroaryloxo, heteroarylalkyl, heteroarylalkenyl, heteroaryloxy, hydroxy, nitro, cyano, amino, substituted amino, thiol, alkylthio, arylthio, heteroarylthio, arylthioalkyl, alkylcarbonyl, arylcarbonyl, arylaminocarbonyl, alkoxycarbonyl, aminocarbonyl, alkynylaminocarbonyl, alkylaminocarbonyl, alkenylaminocarbonyl, alkylcarbonyloxy, arylcarbonyloxy, alkylcarbonylamino, arylcarbonylamino, arylsulfinyl, arylsulfinylalkyl, arylsulfonyl, alkylsulfonyl, arylsulfonylamino, heteroarylcarbonylamino, heteroarylsulfinyl, heteroarylthio, heteroarylsulfonyl, alkylsulfinyl;
• or
• R.sup.1 and R.sup.5a can be joined to form a ring of the structure ##STR103## R.sup.23, R.sup.24 and R.sup.25 are independently hydrogen, alkyl, alkenyl, alkynyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl, or cycloalkylalkyl;
• R.sup.20, R.sup.21, R.sup.22 are independently hydrogen, halo, alkyl, alkenyl, alkoxy, aryloxy, aryl, arylalkyl, alkylmercapto, arylmercapto, cycloalkyl, cycloalkylalkyl, heteroaryl, heteroarylalkyl, hydroxy or haloalkyl;
• and these substituents may either be directly attached to R.sup.1, or attached via an alkylene at an open position;
• R.sup.2 is hydrogen, alkyl, alkenyl, alkynyl, haloalkyl, alkoxyl, (alkyl or aryl).sub.3 Si (where each alkyl or aryl group is independent), cycloalkyl, cycloalkenyl, substituted alkylamino, substituted arylalkylamino, aryl, arylalkyl, arylamino, aryloxy, heteroaryl, heteroarylamino, heteroaryloxy, arylsulfonylamino, heteroarylsulfonylamino, arylthio, arylsulfinyl, arylsulfonyl, alkylthio, alkylsulfinyl, alkylsulfonyl, heteroarylthio, heteroarylsulfinyl, heteroarylsulfonyl, cycloheteroalkyl, cycloheteroalkylalkyl, --PO(R.sup.13) (R.sup.14), (where R.sup.13 and R.sup.14 are independently alkyl, aryl, alkoxy, aryloxy, heteroaryl, heteroarylalkyl, heteroaryloxy, heteroarylalkoxy, cycloheteroalkyl, cycloheteroalkylalkyl, cycloheteroalkoxy, or cycloheteroalkylalkoxy);
• cyano, 1,1-(alkoxyl or aryloxy).sub.2 alkyl (where the two aryl or alkyl substituents can be independently defined), R.sup.2 may be substituted with 1, 2, 3 or 4 substituents, which can be any of substituents for R.sup.1, or haloalkylamino, alkylamino, cycloalkylamino, arylamino, heteroarylamino, alkoxyamino, aryloxyamino, heteroaryloxylamino, heterocyclylamino (where the heterocycle is connected to the carbonyl group via a nitrogen or carbon atom);
• L.sup.1 is a linking group containing from 1 to 10 carbons in a linear chain including alkylene, alkenylene or alkynylene, which may contain, within the linking chain any of the following:
• one or two alkenes, one or two alkynes, an oxygen, an amino group, an oxo group, and may be substituted with one to five alkyl or halo groups;
• L.sup.2 may be the same or different from L.sup.1 and may independently be any of the L.sup.1 groups set out above or a singe bond;
• R.sup.3, R.sup.3', R.sup.4 and R.sup.4' may be the same or different and are independently selected from H, halogen, CF.sub.3, haloalkyl, hydroxy, alkoxy, alkyl, aryl, alkenyl, alkenyloxy, alkynyl, alkynyloxy, alkanoyl, nitro, amino, thiol, alkylthio, alkylsulfinyl, alkylsulfonyl, carboxy, alkoxycarbonyl, aminocarbonyl, alkylcarbonyloxy, alkylcarbonylamino, cycloheteroalkyl, cycloheteroalkylalkyl, cyano, Ar-, Ar-alkyl, ArO, Ar-amino, Ar-thio, Ar-sulfinyl, Ar-sulfonyl, Ar-carbonyl, Ar-carbonyloxy or Ar-carbonylamino, wherein Ar is aryl or heteroaryl and Ar may optionally include 1, 2 or 3 additional rings fused to Ar;
• R.sup.3a and R.sup.3b are the same or different and are independently any of the R.sup.3 groups;
• ##STR104## are the same or different and independently represent a 5 or 6 membered heteroaryl ring which contains 1, 2, 3 or 4 heteroatoms in the ring which are independently N, S or O;
• and including N-oxides;
• X is a bond, or is one of the following groups:
• ##STR105## wherein Y is O, N--R.sup.6 or S;
• n' is 0, 1 or 2;
• R.sup.6 is H, lower alkyl, aryl, --C(O)--R.sup.11 or --C(O)--O--R.sup.11 ;
• R.sup.7 and R.sup.8 are the same or different and are independently H, alkyl, aryl, halogen, --O--R.sup.12, or
• R.sup.7 and R.sup.8 together can be oxygen to form a ketone;
• R.sup.9, R.sup.10, R.sup.9' and R.sup.10' are the same or different and are independently H, lower alkyl, aryl or --O--R.sup.11 ;
• R.sup.9" and R.sup.10" are the same or different and are independently H, lower alkyl, aryl, halogen or --O--R.sup.11 ;
• R.sup.11 is alky or aryl;
• R.sup.12 is H, alkyl or aryl;
• with the proviso that when A is a (1) bond, R.sup.2 L.sup.2 cannot be H.