Disclosed are compounds of Formulas (I), (II), (III), (IV), and (V):

##STR00001##

and/or a salt thereof, wherein R.sub.1 is OH or OP(O)(OH).sub.2, and X.sub.1, X.sub.2, X.sub.3, R.sub.2, R.sub.2a, R.sub.a, R.sub.b, and R.sub.c are defined herein. Also disclosed are methods of using such compounds as selective agonists for G protein-coupled receptor S1P.sub.1, and pharmaceutical compositions comprising such compounds. These compounds are useful in treating, preventing, or slowing the progression of diseases or disorders in a variety of therapeutic areas, such as autoimmune diseases and vascular disease.

Disclosed are compounds of Formulas (I), (II), (III), (IV), and (V):

##STR00001##

and/or a salt thereof, wherein R.sub.1 is OH or OP(O)(OH).sub.2, and X.sub.1, X.sub.2, X.sub.3, R.sub.2, R.sub.2a, R.sub.a, R.sub.b, and R.sub.c are defined herein. Also disclosed are methods of using such compounds as selective agonists for G protein-coupled receptor S1P.sub.1, and pharmaceutical compositions comprising such compounds. These compounds are useful in treating, preventing, or slowing the progression of diseases or disorders in a variety of therapeutic areas, such as autoimmune diseases and vascular disease.

Disclosed is a single unit oral dosage form having, in combination, inositol and an extended release clonidine or extended release guanfacine. In one aspect, a method for treating ADHD and/or associated symptoms thereof includes administering to an ADHD patient the single unit oral dosage form. In another aspect, a method for treating ADHD and/or associated symptoms thereof includes administering to an ADHD patient inositol in combination with extended release clonidine or extended release guanfacine, whether administered separately or as a single dosage form.

Disclosed is a single unit oral dosage form having, in combination, inositol and an extended release clonidine or extended release guanfacine. In one aspect, a method for treating ADHD and/or associated symptoms thereof includes administering to an ADHD patient the single unit oral dosage form. In another aspect, a method for treating ADHD and/or associated symptoms thereof includes administering to an ADHD patient inositol in combination with extended release clonidine or extended release guanfacine, whether administered separately or as a single dosage form.

Methods for preparing a variety of ladderane precursors, ladderane compounds and ladderane lipids are provided. Also provided are methods of preparing a liposome from the ladderane lipids disclosed herein, and compositions thereof. Aspects of the invention include encapsulated one or more cargo moieties in the liposome or compositions thereof and use of the subject liposome compositions as vehicles in drug delivery, imaging, diagnostics and other medical applications. Aspects of the methods disclosed herein include administering a liposomal composition comprising a pharmaceutical agent to a subject under conditions sufficient to deliver the composition to a site of interest in the subject, and release the pharmaceutical agent from the liposomal composition.

Methods for preparing a variety of ladderane precursors, ladderane compounds and ladderane lipids are provided. Also provided are methods of preparing a liposome from the ladderane lipids disclosed herein, and compositions thereof. Aspects of the invention include encapsulated one or more cargo moieties in the liposome or compositions thereof and use of the subject liposome compositions as vehicles in drug delivery, imaging, diagnostics and other medical applications. Aspects of the methods disclosed herein include administering a liposomal composition comprising a pharmaceutical agent to a subject under conditions sufficient to deliver the composition to a site of interest in the subject, and release the pharmaceutical agent from the liposomal composition.

Disclosed are compounds of Formulas (I), (II), (III), (IV), and (V): ##STR00001##
and/or a salt thereof, wherein R.sub.1 is OH or OP(O)(OH).sub.2, and X.sub.1, X.sub.2, X.sub.3, R.sub.2, R.sub.2a, R.sub.a, R.sub.b, and R.sub.c are defined herein. Also disclosed are methods of using such compounds as selective agonists for G protein-coupled receptor S1P.sub.1, and pharmaceutical compositions comprising such compounds. These compounds are useful in treating, preventing, or slowing the progression of diseases or disorders in a variety of therapeutic areas, such as autoimmune diseases and vascular disease.

Disclosed are compounds of Formulas (I), (II), (III), (IV), and (V): ##STR00001##
and/or a salt thereof, wherein R.sub.1 is OH or OP(O)(OH).sub.2, and X.sub.1, X.sub.2, X.sub.3, R.sub.2, R.sub.2a, R.sub.a, R.sub.b, and R.sub.c are defined herein. Also disclosed are methods of using such compounds as selective agonists for G protein-coupled receptor S1P.sub.1, and pharmaceutical compositions comprising such compounds. These compounds are useful in treating, preventing, or slowing the progression of diseases or disorders in a variety of therapeutic areas, such as autoimmune diseases and vascular disease.

Disclosed is a single unit oral dosage form having, in combination, inositol and an extended release clonidine or extended release guanfacine. In one aspect, a method for treating ADHD and/or associated symptoms thereof includes administering to an ADHD patient the single unit oral dosage form. In another aspect, a method for treating ADHD and/or associated symptoms thereof includes administering to an ADHD patient inositol in combination with extended release clonidine or extended release guanfacine, whether administered separately or as a single dosage form.

Disclosed is a single unit oral dosage form having, in combination, inositol and an extended release clonidine or extended release guanfacine. In one aspect, a method for treating ADHD and/or associated symptoms thereof includes administering to an ADHD patient the single unit oral dosage form. In another aspect, a method for treating ADHD and/or associated symptoms thereof includes administering to an ADHD patient inositol in combination with extended release clonidine or extended release guanfacine, whether administered separately or as a single dosage form.