The present disclosure provides processes for the preparation of a compound of formula: ##STR00001##
which is useful as an antiviral agent. The disclosure also provides compounds that are synthetic intermediates.

The present disclosure provides processes for the preparation of a compound of formula: ##STR00001##
which is useful as an antiviral agent. The disclosure also provides compounds that are synthetic intermediates.

A complex of formula (I) ##STR00001## wherein M is zirconium or hafnium; each X independently is a sigma ligand; L is a divalent bridge selected from —R′.sub.2C—, —R′.sub.2C—CR′.sub.2—, —R′.sub.2Si—, —R′.sub.2Si—SiR′.sub.2—, —R′.sub.2Ge—, wherein each R′ is independently a hydrogen atom or a C.sub.1-C.sub.20-hydrocarbyl .group optionally containing one or more silicon atoms or heteroatoms of Group 14-16 of the periodic table or fluorine atoms, and optionally two R′ groups taken together can form a ring; R.sup.2 and R.sup.2′ are each independently a C.sub.1-C.sub.20 hydrocarbyl group, —OC.sub.1-20 hydrocarbyl group or —SC.sub.1-20 hydrocarbyl group; R.sup.5 is a —OC.sub.1-20 hydrocarbyl group or —SC.sub.1-20 hydrocarbyl group, said R.sup.5 group being optionally substituted by one or more halo groups; R.sup.5′ is hydrogen or a C.sub.1-20 hydrocarbyl group; —OC.sub.1-20 hydrocarbyl group or —SC.sub.1-20 hydrocarbyl group; said C.sub.1-20 hydrocarbyl group being optionally substituted by one or more halo groups; R.sup.6 and R.sup.6′ are each independently a C.sub.1-20 hydrocarbyl group; —OC.sub.1-20 hydrocarbyl group or —SC.sub.1-20 hydrocarbyl group; each R.sup.1 and R.sup.1′ are independently —CH.sub.2R.sup.x wherein R.sup.x are each independently H, or a C.sub.1-20 hydrocarbyl group, optionally containing heteroatoms.

A complex of formula (I) ##STR00001## wherein M is zirconium or hafnium; each X independently is a sigma ligand; L is a divalent bridge selected from —R′.sub.2C—, —R′.sub.2C—CR′.sub.2—, —R′.sub.2Si—, —R′.sub.2Si—SiR′.sub.2—, —R′.sub.2Ge—, wherein each R′ is independently a hydrogen atom or a C.sub.1-C.sub.20-hydrocarbyl .group optionally containing one or more silicon atoms or heteroatoms of Group 14-16 of the periodic table or fluorine atoms, and optionally two R′ groups taken together can form a ring; R.sup.2 and R.sup.2′ are each independently a C.sub.1-C.sub.20 hydrocarbyl group, —OC.sub.1-20 hydrocarbyl group or —SC.sub.1-20 hydrocarbyl group; R.sup.5 is a —OC.sub.1-20 hydrocarbyl group or —SC.sub.1-20 hydrocarbyl group, said R.sup.5 group being optionally substituted by one or more halo groups; R.sup.5′ is hydrogen or a C.sub.1-20 hydrocarbyl group; —OC.sub.1-20 hydrocarbyl group or —SC.sub.1-20 hydrocarbyl group; said C.sub.1-20 hydrocarbyl group being optionally substituted by one or more halo groups; R.sup.6 and R.sup.6′ are each independently a C.sub.1-20 hydrocarbyl group; —OC.sub.1-20 hydrocarbyl group or —SC.sub.1-20 hydrocarbyl group; each R.sup.1 and R.sup.1′ are independently —CH.sub.2R.sup.x wherein R.sup.x are each independently H, or a C.sub.1-20 hydrocarbyl group, optionally containing heteroatoms.

Treprostinil is a synthetic prostacyclin derivative with thrombocyte aggregation inhibitory and vasodilatory activity. Treprostinil can be administered in subcutaneous, intravenous, inhalable, or oral forms. Disclosed is a method for the preparation of treprostinil of formula I and its amorphous form, anhydrate form, monohydrate form, and polyhydrate form salts with bases. In the disclosed method, the chiral center in the 3-hydroxyoctyl substituent is formed at the end of the synthesis, so that the method is robust and well scalable. Also disclosed are treprostinil intermediates and the preparation of the intermediates. ##STR00001##

Treprostinil is a synthetic prostacyclin derivative with thrombocyte aggregation inhibitory and vasodilatory activity. Treprostinil can be administered in subcutaneous, intravenous, inhalable, or oral forms. Disclosed is a method for the preparation of treprostinil of formula I and its amorphous form, anhydrate form, monohydrate form, and polyhydrate form salts with bases. In the disclosed method, the chiral center in the 3-hydroxyoctyl substituent is formed at the end of the synthesis, so that the method is robust and well scalable. Also disclosed are treprostinil intermediates and the preparation of the intermediates. ##STR00001##

A phenalene-1-one compound, a photosensitizer composition including the phenalene-1-one compound, an article including the phenalene-1-one compound and/or photosensitizer composition and the use thereof.

A phenalene-1-one compound, a photosensitizer composition including the phenalene-1-one compound, an article including the phenalene-1-one compound and/or photosensitizer composition and the use thereof.

The present invention relates to compounds of the formula (I), which are suitable as monomers for preparing thermoplastic resins having beneficial optical properties and which can be used for producing optical devices: where A.sup.1, A.sup.2 are selected from mono- or bicyclic aromatic radicals and mono- or bicyclic heteroaromatic radicals, X represents e.g. a single bond, O, NH, CR.sup.6R.sup.7, Y is e.g. absent or represents a single bond, O, NH, CR.sup.8R.sup.9; R.sup.1, R.sup.2 are hydrogen, a radical Ar′ or a radical R.sup.a; R.sup.3 is Alk, O-Alk′-, O-Alk′-[O-Alk′].sub.0, O—CH.sub.2—Ar—C(O)—, O—C(O)—Ar—C(O)— or O-Alk-C(O)—, where in the last five moieties the left O is bound to A.sup.1 and A.sup.2, respectively, m, n are 0, 1 or 2; o is an integer from 1 to 10; R.sup.4, R.sup.5 are e.g. selected from CN and a radical R.sup.a; R.sup.6, R.sup.8 are e.g. selected from hydrogen, a radical Ar′ and a radical R.sup.a; R.sup.7, R.sup.9 are e.g. selected from hydrogen, C.sub.1-C.sub.4-alkyl and a radical Ar′; R.sup.a is selected from the group consisting of C≡C—R.sup.11 and Ar—C≡C—R.sup.11; R.sup.11 is e.g. selected from hydrogen, methyl, mono- or polycyclic aryl having from 6 to 26 carbon atoms and mono- or polycyclic hetaryl having a total of 5 to 26 atoms, which are ring members, where 1, 2, 3 or 4 of the ring atoms of hetaryl are selected from nitrogen, sulphur and oxygen, while the remainder of these atoms are carbon atoms, where mono- or polycyclic aryl are unsubstituted or substituted; and Ar is e.g. phenylene or naphthylene. The invention also relates to thermoplastic resins comprising a polymerized unit of the compound of formula (I) and to optical devices made of such resins.

##STR00001##

Treprostinil is a synthetic prostacyclin derivative with thrombocyte aggregation inhibitory and vasodilatory activity. Treprostinil can be administered in subcutaneous, intravenous, inhalable, or oral forms. Disclosed is a method for the preparation of treprostinil of formula I and its amorphous form, anhydrate form, monohydrate form, and polyhydrate form salts with bases. In the disclosed method, the chiral center in the 3-hydroxyoctyl substituent is formed at the end of the synthesis, so that the method is robust and well scalable. Also disclosed are treprostinil intermediates and the preparation of the intermediates.

##STR00001##