The present invention relates to several novel 1-O-glycosylated sphingoid bases and to a production method thereof, as well as to uses of the 1-O-glycosylated sphingoid bases.

Sphingoid bases carrying a vinylogous amide-type protecting group are used herein for the production of 1-O-glycosylated sphingoid bases. These vinylogous amide compounds enable an easy and effective production of 1-O-glycosylated sphingoid bases.

##STR00001##

The present disclosure is concerned with 2-pyrimidone compounds that are capable of inhibiting a viral infection and methods of treating alphavirus viral infections such as, for example, chikungunya, Eastern equine encephalitis (EEEV), Western equine encephalitis (WEEV), and Venezuelan equine encephalitis using these compounds. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

A compound represented by Formula (I):

##STR00001##

wherein

##STR00002##

or the like
Y.sup.1 is O or the like; Z.sup.1 is C(R.sup.4) or N; Z.sup.2a is C(R.sup.5a) or the like; Z.sup.3a is C(R.sup.6) or the like; R.sup.4, R.sup.5a and R.sup.6 are each independently a hydrogen atom or the like; R.sup.1 is substituted or unsubstituted aromatic carbocyclyl or the like; R.sup.2a, R.sup.2b, R.sup.2c and R.sup.2d are each independently a hydrogen atom or the like; X is N(R.sup.7a) or the like; R.sup.7a is a hydrogen atom or the like; R.sup.3 is

##STR00003##

or the like
Ring B is a 6-membered aromatic carbocycle or the like; R.sup.9a and R.sup.10a are each independently halogen or the like; n is an integer from 1 to 5; m is an integer from 0 to 4; and p 1 is an integer from 0 to 3,
or a pharmaceutically acceptable salt thereof.

A compound represented by Formula (I):

##STR00001##

wherein

##STR00002##

or the like
Y.sup.1 is O or the like; Z.sup.1 is C(R.sup.4) or N; Z.sup.2a is C(R.sup.5a) or the like; Z.sup.3a is C(R.sup.6) or the like; R.sup.4, R.sup.5a and R.sup.6 are each independently a hydrogen atom or the like; R.sup.1 is substituted or unsubstituted aromatic carbocyclyl or the like; R.sup.2a, R.sup.2b, R.sup.2c and R.sup.2d are each independently a hydrogen atom or the like; X is N(R.sup.7a) or the like; R.sup.7a is a hydrogen atom or the like; R.sup.3 is

##STR00003##

or the like
Ring B is a 6-membered aromatic carbocycle or the like; R.sup.9a and R.sup.10a are each independently halogen or the like; n is an integer from 1 to 5; m is an integer from 0 to 4; and p 1 is an integer from 0 to 3,
or a pharmaceutically acceptable salt thereof.

A compound represented by Formula (I): ##STR00001##
wherein ##STR00002##
or the like,
Y.sup.1 is O or the like; Z.sup.1 is C(R.sup.4) or N; Z.sup.2a is C(R.sup.5a) or the like; Z.sup.3a is C(R.sup.6) or the like; R.sup.4, R.sup.5a and R.sup.6 are each independently a hydrogen atom or the like; R.sup.1 is substituted or unsubstituted aromatic carbocyclyl or the like; R.sup.2a, R.sup.2b, R.sup.2c and R.sup.2d are each independently a hydrogen atom or the like; X is N(R.sup.7a) or the like; R.sup.7a is a hydrogen atom or the like; R.sup.3 is ##STR00003##
or the like,
Ring B is a 6-membered aromatic carbocycle or the like; R.sup.9a and R.sup.10a are each independently halogen or the like; n is an integer from 1 to 5; m is an integer from 0 to 4; and p1 is an integer from 0 to 3,
or a pharmaceutically acceptable salt thereof.

A compound represented by Formula (I): ##STR00001##
wherein ##STR00002##
or the like,
Y.sup.1 is O or the like; Z.sup.1 is C(R.sup.4) or N; Z.sup.2a is C(R.sup.5a) or the like; Z.sup.3a is C(R.sup.6) or the like; R.sup.4, R.sup.5a and R.sup.6 are each independently a hydrogen atom or the like; R.sup.1 is substituted or unsubstituted aromatic carbocyclyl or the like; R.sup.2a, R.sup.2b, R.sup.2c and R.sup.2d are each independently a hydrogen atom or the like; X is N(R.sup.7a) or the like; R.sup.7a is a hydrogen atom or the like; R.sup.3 is ##STR00003##
or the like,
Ring B is a 6-membered aromatic carbocycle or the like; R.sup.9a and R.sup.10a are each independently halogen or the like; n is an integer from 1 to 5; m is an integer from 0 to 4; and p1 is an integer from 0 to 3,
or a pharmaceutically acceptable salt thereof.

The invention provides compounds having the general formula I: and pharmaceutically acceptable salts thereof, wherein the variables R.sup.1, R.sup.2, R.sup.3 and R.sup.4 have the meaning as described herein, and compositions containing such compounds and methods for using such compounds and compositions.

##STR00001##

The invention provides compounds having the general formula I: and pharmaceutically acceptable salts thereof, wherein the variables R.sup.1, R.sup.2, R.sup.3 and R.sup.4 have the meaning as described herein, and compositions containing such compounds and methods for using such compounds and compositions.

##STR00001##

The present invention relates to sphingolipids, a method for the production of sphingoid bases, especially sphingosine, and novel derivatives thereof. The sphingoid bases are herein produced by making use of a vinylogous amide-type protecting group. The resulting vinylogous amide compounds enable an easy and effective production of sphingoid bases, especially sphingosine.

##STR00001##

The present invention relates to sphingolipids, a method for the production of sphingoid bases, especially sphingosine, and novel derivatives thereof. The sphingoid bases are herein produced by making use of a vinylogous amide-type protecting group. The resulting vinylogous amide compounds enable an easy and effective production of sphingoid bases, especially sphingosine.

##STR00001##