In this task, you need to Translate Czech text to English.

Ex Input:
Předmětem vynálezu je způsob přípravy  nízkomolekulárních epoxidových pryskyřic s  upravenou distribuční křivkou molekulových  hmotností cestou extraktivní frakcionace  působením parafinických nebo cyklanických  uhlovodíků, čímž se odstraní mérhomology  909 a vyšší, včetně řady nečistot  odpovědných za barevnost, nasákavost vodou  atd. Pryskyřice se používá pro speciální  aplikace, zejména v oblasti kardiostimulátorů  a stimulátorů mozkových struktur.

Ex Output:
The subject of the invention is a method of preparation  low molecular weight epoxy resins with  modified molecular distribution curve  mass fraction through extractive fractionation  paraffinic or cyclanic  hydrocarbons, thereby removing merhomology  909 and higher, including a range of impurities  responsible for color, water absorption  etc. The resin is used for special  applications, especially in the field of pacemakers  and stimulators of brain structures.


Ex Input:
Vynález se týká esterů kyseliny acylsulfonamido  a sulfonamidopyridin-2-karboxlové a jejich  paridin-N-oxidů obecného vzorce I, ve kteém A  znamená R.sup.3 .n.a B znamená skupinu X-NR.sup.5.n.R.sup.6 .n.nebo B  znamená R.sup.3 .n.a A znamená X-NR.sup.5R6.n.. Tyto sloučeniny  jsou vhodné jeko léčiva proti fibrosním  onemocněním.ŕ

Ex Output:
The present invention relates to esters of acylsulfonamido and sulfonamidopyridine-2-carboxylic acids and to their paridine N-oxides of formula I in which A is R.sup.3 in B is X-NR.sup.5.nRsup.6. or B is R.sup.3 in A is X-NR.sup.5R6n. These compounds are useful as anti-fibrosis drugs.


Ex Input:
Pou it  benzenov²ch deriv t  obecn ho vzorce I', kde R.sub.1.n. je H, OH, acyloxy s 1 a  9 C nebo alkoxy s 1 a  6 C; R'.sub.2.n. a R'.sub.3.n. jsou nez visle H, OH, atom halogenu, alkyl s 1 a  6 C, nebo alkoxy s 1 a  6 C; R.sub.4.n. je H nebo alkyl s 1 a  6 C; A je zbytek obecn ho vzorce II, kde R.sub.5.n. je H, nebo pop° pad  substituovan² alkyl s 1 a  6 C, alkenyl s 1 a  6 C nebo alkoxy s 1 a  6 C, fenyl nebo 4-methoxyfenyl, nebo tvo°  p ti lenn² spirokruh se dv ma atomy O; nebo skupinu B, kde B m  v²znam uveden² v n roc ch; R.sub.6.n. a R.sub.7.n. jsou nez visle H, alkyl s 1 a  6 C, alkenyl s 1 a  6 C, p°i em  ka d  z v² e uveden²ch skupin je pop° pad  substituov na a R.sub.6.n. a R.sub.7.n. nep°edstavuj  sou asn  methyl; nebo R.sub.6.n. a R.sub.7.n. dohromady tvo°  pop° pad  substituovan² kruh; n je cel    slo 2, 3, 4, 5 nebo 6; a jejich farmaceuticky vhodn²ch sol  a mo n²ch stereoizomer  a optick²ch izomer  t chto slou enin a sol  pro v²robu l  iva pro l  en  ischemick²ch chorob; jako  i nov  benzenov  deriv ty a terapeutick  prost°edky na jejich b zi.\

Ex Output:

The invention provides for the use of benzene derivatives of the general formula I', in which Ri1 represents hydrogen, OH, acyloxy having 1 to 9 carbon atoms or alkoxy containing 1 to 6 carbon atoms; R'i2 and R'i3 represent independently on each other hydrogen, OH, a halogen atom, alkyl containing 1 to 6 carbon atoms, or alkoxy having 1 to 6 carbon atoms; Ri4 represents hydrogen or alkyl with 1 to 6 carbon atoms; A represents the radical of the general formula II, wherein Ri5 represents hydrogen, or an optionally substituted alkyl containing 1 to 6 carbon atoms, alkenyl having 1 to 6 carbon atoms or alkoxy with 1 to 6 carbon atoms, phenyl or 4-methoxyphenyl, or with two oxygen atoms it forms a 5-membered spiro ring; or the group B, wherein B is as specified in the claims; Ri6 and Ri7 represent independently on each other hydrogen, alkyl containing 1 to 6 carbon atoms, alkenyl having 1 to 6 carbon atoms, whereby each of the above indicated groups can be optionally substituted and Ri6 and Ri7 do not represent each methyl; or Ri6 and Ri7 together form an optionally substituted ring; n is an integer 2, 3, 4, 5 or 6; and their pharmaceutically acceptable salts and possible stereoisomers and optical isomers of these compounds and salts for preparing a medicament for treating ischemic diseases; as well as novel benzene derivatives and therapeutic preparations based thereon.