An ammonium salt having a saccharin anion, which is represented by formula (1), exhibits excellent thermal stability even though no halogen atom is contained therein.

##STR00001##

(In the formula, each of R.sup.1-R.sup.4 independently represents an alkyl group having 1-4 carbon atoms or an alkoxyalkyl group that is represented by —(CH.sub.2).sub.n—OR (wherein R represents an alkyl group having 1-4 carbon atoms, and n represents an integer of 1 or 2). Incidentally, any two of the R.sup.1-R.sup.4 may combine with each other to form a ring together with a nitrogen atom.)

The invention relates to compounds of formula (I):

##STR00001##

wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and

##STR00002##

are as defined in the description.

Inhibitor compounds and agents of Cathepsin C, CELA1, CELA3A and/or structurally related molecules thereto, compositions comprising same and uses thereof in the inhibition and/or prevention of cell and/or tissue necrosis is described. Various applications for the described compounds, and combination therapies are described as well.

Inhibitor compounds and agents of Cathepsin C, CELA1, CELA3A and/or structurally related molecules thereto, compositions comprising same and uses thereof in the inhibition and/or prevention of cell and/or tissue necrosis is described. Various applications for the described compounds, and combination therapies are described as well.

A resist composition comprising a base polymer and a quencher containing a sulfonium salt having an iodized benzene ring offers a high sensitivity, minimal LWR and improved CDU independent of whether it is of positive or negative tone.

A resist composition comprising a base polymer and a quencher containing a sulfonium salt having an iodized benzene ring offers a high sensitivity, minimal LWR and improved CDU independent of whether it is of positive or negative tone.

The present invention provides new compounds and compositions thereof that release carbon monoxide for the treatment of medical disorders that are responsive to carbon monoxide, for example, inflammatory, pain, and dermatological disorders.

A resist composition comprising a quencher containing a sulfonium salt having the formula (A).

##STR00001##

A resist composition comprising a quencher containing a sulfonium salt having the formula (A).

##STR00001##

The present invention provides for novel co-crystals of lenalidomide. The present invention particularly provides for novel cocrystals of lenalidomide with Resorcinol, Methyl paraben and Saccharin. The present invention also provides for the processes for the production of cocrystals of lenalidomide with Resorcinol, Methyl paraben and Saccharin. The present invention further provides for processes for the preparation of crystalline anhydrous lenalidomide Form IV.