Hoffmann-la Roche Inc.

Gottlieb Ryser

Werner Bollag

Rudolf Ruegg

Gerhard Huppi

Wijitha De Silva

Ralph Haenni

Wijitha DeSilva

Novel 9-phenyl 5,6-dimethyl-nona-2,4,6,8-tetraenoic acid,- tetraenal or tetraenol derivatives useful as anti-tumor agents.

Substituted triarylphosphonium derivatives

Novel 9-phenyl 5,6-dimethyl-nona-2,4,6,8-tetraenoic acid,-tetraenal or tetraenol derivatives useful as anti-tumor agents.

Substituted triaryl phosphonium derivatives

Novel 9-phenyl 5,6-dimethyl-nona-2,4,6,8-tetraenoic acid, tetraenal or tetraenol derivatives useful as anti-tumor agents.

Certain 6-(3'-methoxyphenyl) derivatives of 2,4-hexadienal

Novel 9-(halo-substituted phenyl)-3,7-dimethyl-nona-2,4,6,8-tetraene derivatives useful as anti-tumor agents are disclosed.

2,6-Dichloro-4-methoxy-5-methyl-benzene aldehydes

Novel 9-(halo-substituted phenyl)-3,7-dimethyl-nona-2,4,6,8-tetraene derivatives useful in treating dermatological conditions.

Polyene compounds

9-Phenyl 5,6-dimethyl-nona-2,4,6,8 tetraenal or tetraenol derivatives

9-Phenyl-nonate traene compounds

Novel 9-substituted phenyl-3,7-dimethyl-nona-2,4,6,8-tetraene derivatives useful as anti-tumor agents.

9-Substituted phenyl-3,7-dimethyl-nona 2,4,6,8-tetraene compounds

The compound 9-(2,2,5-trimethyl-4-hydroxy or oxo-1-cyclohexenyl)-3,7-dimethyl-2,4,6,8-nonatetraenoic acid and derivatives useful as antitumor agents and in the prophylaxis and/or treatment of certain carcinomas.

Nonatetraenoic acid derivatives

Novel derivatives of 9-substituted

Compounds represented by the formula ##STR1## wherein R.sub.1 is lower alkyl having 1-4 carbons, lower alkenyl having 2-4 carbons or lower alkynyl having 2-4 carbons; R.sub.2, R.sub.3 and R.sub.4 each are a lower alkyl having 1-4 carbons or R.sub.2 and R.sub.4 together with the carbon to which they are attached are a 5 or 6 membered alicyclic ring; and X is chlorine, bromine or iodine; Their use as plant growth regulants and plant growth regulant compositions containing the active compounds are disclosed.

Piperidine salts as plant growth regulants

Novel compounds of 9-phenyl-3,7-dimethyl-2,4,6,8-nonatetraenamide

9-Phenyl 5,6-dimethyl-nona-2,4,6,8-tetraeonic acid compounds

Novel 9-substituted phenyl-3,7-dimethyl-nona-2,4,6,8-tetraene esters

Compositions suitable for the care of the hair and scalp particularly with respect to the control of dandruff are disclosed. Said compositions comprise a suitable inert carrier and, as an active ingredient, a compound selected from those represented by the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.6 are lower alkyl.

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Basel, Switzerland

Gottlieb Ryser