The present invention involves a mechanochemical process in which at least two reactants are mixed without an additional solvent to produce an SNAr reaction product. In one embodiment, the mixing is achieved using a twin-screw extruder. In another embodiment, the mixing is achieved using dry mixing equipment. In one embodiment, the dry mixing equipment is selected from the group consisting of batch Paddle Mills, continuous Paddle Mills, V-Blenders, Twin Cone Blenders and Ribbon Blenders. In another embodiment, the mixing is achieved using a Fluidized Bed reactor.

The present invention involves a mechanochemical process in which at least two reactants are mixed without an additional solvent to produce an SNAr reaction product. In one embodiment, the mixing is achieved using a twin-screw extruder. In another embodiment, the mixing is achieved using dry mixing equipment. In one embodiment, the dry mixing equipment is selected from the group consisting of batch Paddle Mills, continuous Paddle Mills, V-Blenders, Twin Cone Blenders and Ribbon Blenders. In another embodiment, the mixing is achieved using a Fluidized Bed reactor.

Solid supports for use in solid-phase peptide synthesis (SPPS) are provided. The solid supports may include a resin and a protected linker coupled to the resin. The linker may be an N-mercaptoethoxyglycine, an N-mercaptopropoxyglycine, an N-mercaptobutoxyglycine, and/or another suitable linker. Kits for use in SPPS are also provided. The kits may include a solid support, a solution including a thiol or a selenol, one or more pluralities of protected amino acids, and/or a wash buffer. Methods of SPPS are also provided. The methods may include providing a solid support including a resin coupled to a protected linker.

Solid supports for use in solid-phase peptide synthesis (SPPS) are provided. The solid supports may include a resin and a protected linker coupled to the resin. The linker may be an N-mercaptoethoxyglycine, an N-mercaptopropoxyglycine, an N-mercaptobutoxyglycine, and/or another suitable linker. Kits for use in SPPS are also provided. The kits may include a solid support, a solution including a thiol or a selenol, one or more pluralities of protected amino acids, and/or a wash buffer. Methods of SPPS are also provided. The methods may include providing a solid support including a resin coupled to a protected linker.

An antiozonant of formula (I):

##STR00001##

wherein X is selected from the group consisting of O, S, and N; and wherein R is selected from the group consisting of hydrogen, an alkyl moiety, a cycloalkyl moiety, an aryl moiety, an amine moiety, an amide moiety, an alcohol moiety, an aldehyde moiety, a ketone moiety, a carboxylic acid moiety, an ether moiety, an ester moiety, and a thiol moiety. A rubber composition contains the antiozonant, a diene elastomer; a reinforcing filler; a sulfur-based curing agent; and an accelerator for the curing agent.

An antiozonant of formula (I):

##STR00001##

wherein X is selected from the group consisting of O, S, and N; and wherein R is selected from the group consisting of hydrogen, an alkyl moiety, a cycloalkyl moiety, an aryl moiety, an amine moiety, an amide moiety, an alcohol moiety, an aldehyde moiety, a ketone moiety, a carboxylic acid moiety, an ether moiety, an ester moiety, and a thiol moiety. A rubber composition contains the antiozonant, a diene elastomer; a reinforcing filler; a sulfur-based curing agent; and an accelerator for the curing agent.