摘要:
PNA synthesis using a base-labile amino protecting group Processes are described for preparing PNA oligomers, ##STR1## in which R.sup.0 is hydrogen, alkanoyl, alkoxycarbonyl, cycloalkanoyl, aroyl, heteroaroyl, or a group which favors the intracellular uptake of the oligomer, A and Q are amino acid residues, k and 1 are 0 to 20, n is 1-50, B is a nucleotide base which is customary in nucleotide chemistry, and Q.sup.0 is OH, NH.sub.2, or alkylamino which can be substituted by OH or NH.sub.2. In these processes, the amino acid residues and the structural components ##STR2## in which PG is a base-labile amino protecting group and B' is a nucleotide base which is protected on its exocyclic amino function, are coupled step-wise, in accordance with the solid-phase method, onto a polymeric support which is provided with an anchor group, and, after the construction is complete, the target compounds are cleaved from the polymeric support using a cleaving reagent. Intermediates of the PNA oligomers are also described, as are processes for their preparation.
摘要:
The invention provides a processes for the preparation of a compound of Formula I, or a salt thereof wherein PG is a urethane- or trityl-type protective group; X is NH, O, or S; Y is CH2, O, or NH; and B′ is a base customary in nucleotide chemistry. The processes include reacting a compound of Formula (II) with a compound of Formula (III) a compound of Formula (V) B′—CH2—CO—R2 (V), a monohaloacetic acid derivative in a suitable solvent with an auxiliary base, or a compound of Formula (VII) B′—CH2—CO—R3 (VII), and converting the resulting compounds to that of Formula I.
摘要:
The invention provides compounds and processes for synthesis of peptide nucleic acids (PNA). The compounds include temporary amino protecting groups that are base-labile, and protection groups for the exocyclic amino function of the nucleotide base that is compatible with the base-labile amino protecting group. Cleavage of an oligomer comprising these compounds from a solid support can be achieved using weak or medium strength acids.
摘要:
There are described N-ethylglycine derivatives of the formula I ##STR1## in which PG is a urethane-type or trityl-type amino protective group which is labile to weak acids, X is NH, O or S, Y is CH.sub.2, NH or O, and B' are bases customary in nucleotide chemistry, the exocyclic amino or hydroxyl groups of which being protected by suitable, known protective groups, or are base substitute compounds, and their salts with tert-organic bases, as well as a process for their preparation. The N-ethylglycine derivatives of the formula I are used in the preparation of PNA and PNA/DNA hybrids.
摘要:
The use of a compound of the formula I ##STR1## in which V is an alkyl group, fluorine, chlorine, bromine, or iodine, n is an integer from 1 to 5, W is an alkyl, alkenyl, alkynyl or alkoxy group, cyanide, nitro, carboxyl, hydrogen or a cycloalkyl, aryl, aralkyl or carboalkoxy group, R.sup.1 and R.sup.2 are an alkyl, alkenyl, alkynyl, cycloalkyl or halogenoalkyl group, sodium, potassium, calcium, magnesium, aluminum, lithium, ammonium, triethylammonium or hydrogen, R.sup.1 and R.sup.2 together form a cyclic diester, R.sup.3 and R.sup.4 are an alkyl, alkenyl, alkynyl, carboalkoxy, cycloalkyl or alkoxy group, hydrogen, fluorine, chlorine, bromine or iodine and X, Y and Z are oxygen or sulfur, for the treatment of diseases caused by DNA viruses or RNA viruses is described.
摘要:
The present invention relates to PNA derivatives which carry, at the C terminus, or at both the C and N termini of the PNA backbone, one or more phosphoryl radicals. The phosphoryl radicals carry, where appropriate, one or more labeling groups, groups for crosslinking, groups which promote intracellular uptake, or groups which increase the binding affinity of the PNA derivative for nucleic acids. The invention furthermore relates to a process for preparing the above-mentioned PNA derivatives and to their use as pharmaceuticals or diagnostic agents.
摘要:
The present invention relates to PNA derivatives which carry, at the C terminus, or at both the C and N termini of the PNA backbone, one or more phosphoryl radicals. The phosphoryl radicals carry, where appropriate, one or more labeling groups, groups for crosslinking, groups which promote intracellular uptake, or groups which increase the binding affinity of the PNA derivative for nucleic acids. The invention furthermore relates to a process for preparing the above-mentioned PNA derivatives and to their use as pharmaceuticals or diagnostic agents.
摘要:
Polyamide-oligonucleotide derivatives of the formula F[(DNA-Li)q(PNA-Li)r(DNA-Li)s(PNA)t]xF′ wherein q, r, s, t are, independently of one another, zero or 1, where the total of two or more adjacent q, r, s and t≧2; x is 1 to 20; DNA is a nucleic acid such as DNA or RNA or a known derivative thereof; Li is a covalent linkage between DNA and PNA, where the covalent linkage comprises a bond or an organic radical with at least one atom from the series consisting of C, N, O or S; PNA is a polyamide structure which contains at least one nucleotide base which is different from thymine; and F and F′ are end groups and/or are linked together by a covalent bond, and the physiologically tolerated salts thereof, a process for their preparation and their use as pharmaceutical, as gene probe and as primer, are described.
摘要:
The present invention relates to PNA derivatives which carry, at the N terminus of the PNA backbone, a phosphoryl radical. The phosphoryl radical can be, for example, a phosphate radical, or a substituted phosphoryl radical, with substituted phosphoryl derivatives carrying, where appropriate, one or more labeling groups, groups for crosslinking, groups which promote intracellular uptake, or groups which increase the binding affinity of the PNA derivative for nucleic acids. The invention furthermore relates to a process for preparing the abovementioned PNA derivatives and to their use as pharmaceuticals and diagnostic agents.