Disclosed are compounds, for example, compounds of formula I, ##STR00001##
wherein R, R.sub.0, R.sub.1-R.sub.8, n, X, Y, Y′, and E are as described herein, pharmaceutical compositions containing such compounds, and methods of treating or preventing a disease or condition, for example, cancer.

Disclosed are compounds, for example, compounds of formula I, ##STR00001##
wherein R, R.sub.0, R.sub.1-R.sub.8, n, X, Y, Y′, and E are as described herein, pharmaceutical compositions containing such compounds, and methods of treating or preventing a disease or condition, for example, cancer.

Disclosed are compounds, for example, compounds of formula I, ##STR00001##
wherein R, R.sub.0, R.sub.1-R.sub.8, n, X, Y, Y′, and E are as described herein, pharmaceutical compositions containing such compounds, and methods of treating or preventing a disease or condition, for example, cancer.

Disclosed are compounds, for example, compounds of formula I, ##STR00001##
wherein R, R.sub.0, R.sub.1-R.sub.8, n, X, Y, Y′, and E are as described herein, pharmaceutical compositions containing such compounds, and methods of treating or preventing a disease or condition, for example, cancer.

Disclosed are compounds, for example, a compound of formula I, wherein R, R.sub.0, R.sub.1-R.sub.8, n, X, Y, Y′, and E are as described herein, pharmaceutical compositions containing such compounds, and methods of treating or preventing a disease or condition for example, cancer, mediated by the ras gene. ##STR00001##

Disclosed are compounds, for example, a compound of formula I, wherein R, R.sub.0, R.sub.1-R.sub.8, n, X, Y, Y′, and E are as described herein, pharmaceutical compositions containing such compounds, and methods of treating or preventing a disease or condition for example, cancer, mediated by the ras gene. ##STR00001##

Disclosed are compounds for medical uses, for example, compounds of formula (Ia), wherein A.sub.1, A.sub.2, A.sub.3, A.sub.4, A.sub.5, A.sub.6, A.sub.7, R.sub.6, R.sub.7 and E are as described herein, pharmaceutical compositions containing such compounds, and methods of treating or preventing a disease or condition, for example, cancer.

##STR00001##

Disclosed are compounds for medical uses, for example, compounds of formula (Ia), wherein A.sub.1, A.sub.2, A.sub.3, A.sub.4, A.sub.5, A.sub.6, A.sub.7, R.sub.6, R.sub.7 and E are as described herein, pharmaceutical compositions containing such compounds, and methods of treating or preventing a disease or condition, for example, cancer.

##STR00001##

Methods of treating or suppressing mitochondrial diseases, such as Friedreich's ataxia (FRDA), Leber's Hereditary Optic Neuropathy (LHON), mitochondrial myopathy, encephalopathy, lactacidosis, and stroke (MELAS), Kearns-Sayre Syndrome (KSS), are disclosed, as well as compounds useful in the methods of the invention, such as 4-(p-quinolyl)-2-hydroxybutanamide derivatives. Methods and compounds useful in treating other disorders such as amyotrophic lateral sclerosis (ALS), Huntington's disease, Parkinson's disease, and pervasive developmental disorders such as autism are also disclosed. Energy biomarkers useful in assessing the metabolic state of a subject and the efficacy of treatment are also disclosed. Methods of modulating, normalizing, or enhancing energy biomarkers, as well as compounds useful for such methods, are also disclosed.

Methods of treating or suppressing mitochondrial diseases, such as Friedreich's ataxia (FRDA), Leber's Hereditary Optic Neuropathy (LHON), mitochondrial myopathy, encephalopathy, lactacidosis, and stroke (MELAS), Kearns-Sayre Syndrome (KSS), are disclosed, as well as compounds useful in the methods of the invention, such as 4-(p-quinolyl)-2-hydroxybutanamide derivatives. Methods and compounds useful in treating other disorders such as amyotrophic lateral sclerosis (ALS), Huntington's disease, Parkinson's disease, and pervasive developmental disorders such as autism are also disclosed. Energy biomarkers useful in assessing the metabolic state of a subject and the efficacy of treatment are also disclosed. Methods of modulating, normalizing, or enhancing energy biomarkers, as well as compounds useful for such methods, are also disclosed.