摘要:
The present invention relates to hirudin variants having high anti-thrombin and anti-platelet activity, methods for producing them, and anti-coagulants having said variants as active ingredients.Hirudin variants shown in formula (I) having tyrosine residues or having their hydroxyl group sulfated.Methods for producing hirudin variants by sulfating hydroxyl group of said tyrosine residues, and anti-coagulants having hirudin variants shown in formula (I) as active ingredients.Phe-Glu-A-Ile-Pro-D-Tyr(R) Tyr(R) (I)�In the formula, A represents Glu or Pro, R represents Glu, Tyr (R), Glu-Asp or Glu-Tyr(R), and (R) represents the hydroxy group or its sulfated ester (--O--SO.sub.3 H) of tyrosine residue.!
摘要:
The present invention relates to hirudin variants having high anti-thrombin and anti-platelet activity, methods for producing them, and anti-coagulants having said variants as active ingredients. Hirudin variants shown in formula (I) having tyrosine residues or having their hydroxyl group sulfated. Methods for producing hirudin variants by sulfating hydroxyl group of said tyrosine residues, and anti-coagulants having hirudin variants shown in formula (I) as active ingredients. Phe-Glu-A-Ile-Pro-B-Tyr(R)-Tyr(R) (I) �In the formula, A represents Glu or Pro, B represents Glu, Tyr (R), Glu-Asp or Glu-Tyr(R), and (R) represents the hydroxy group or its sulfated ester (--O--SO.sub.3 H) of tyrosine residue.!
摘要:
Compounds represented by the following general formula and salts thereof; Y-L-Tyr-Q-NR1—CH(R2)—CO—X, wherein R1 represents hydrogen or C1-6 alkyl; R2 represents optionally substituted benzyl; Q represents D- or L-Arg; Y represents two hydrogen atoms of N-terminal amino group of L-Tyr, or one or two functional groups substituting for the hydrogen atoms, for example, a C1-6 alkyl optionally having amino or carboxy; and X represents N-methyl-&bgr;-alanine and other. The compounds have analgesic effect and can be used for the treatment of cancer pain or the like.
摘要:
Disclosed herein are an optical recording medium driving device and an additional recording method, which performs tracking servo control for moving an objective lens in a direction orthogonal to a tangential direction of a guide track so that a guide tracking error signal is decreased with respect to a guide track of a guide layer separation type recording medium, detects an additional recording start position subsequent to a recorded track if the recorded track is present in a recording layer of the optical recording medium, generates a tracking correction signal according to the reproduction tracking error signal upon tracking servo control of the recorded track just before the additional recording start position, and corrects tracking servo control according to the tracking correction signal upon additional recording start.
摘要:
Disclosed herein are an optical recording medium driving device and an additional recording method, which performs tracking servo control for moving an objective lens in a direction orthogonal to a tangential direction of a guide track so that a guide tracking error signal is decreased with respect to a guide track of a guide layer separation type recording medium, detects an additional recording start position subsequent to a recorded track if the recorded track is present in a recording layer of the optical recording medium, generates a tracking correction signal according to the reproduction tracking error signal upon tracking servo control of the recorded track just before the additional recording start position, and corrects tracking servo control according to the tracking correction signal upon additional recording start.
摘要:
An optical recording medium drive device including: a combining prism for combining a recording first laser beam emitted from a first light source with a recording second laser beam emitted from the first light source so as to coaxially guide them; an objective lens for condensing the first and second laser beams from the combining prism toward an optical recording medium; a first photodetecting means for detecting reflected light of the first laser beam from a recording layer; a second photodetecting means for detecting reflected light of the second laser beam from a guide layer; a magnification conversion element disposed on an optical path of the second laser beam between a second light source and the combining prism for diffusing or converging the second laser beam incident upon the objective lens; a first focus error generating means for generating a first focus error signal indicating an error between a condensed spot position of the first laser beam and the recording layer based on an output signal of the first photodetecting means; a second focus error generating means for generating a second focus error signal indicating an error between a condensed spot position of the second laser beam and the guide layer based on an output signal of the second photodetecting means; a first focus control means for controlling the objective lens in an optical axis direction thereof in accordance with the first focus error signal; and a second focus control means for controlling a magnitude of the diffusion or convergence of the second laser beam by the magnification conversion element in accordance with the second focus error signal.
摘要:
A fabrication method of a multilayer optical recording medium having a plurality of recording layers, comprises a step of preparing an optical recording medium having at least one record area; a write-position mark generating step of recording write-position marks in the record area beforehand; a step of preparing an optical system including a common objective lens to focus a data recording beam and a position mark recording beam on different positions in a thickness direction of the record area; a first data writing step of writing data between the write-position marks with following the write-position marks by the data recording beam; a position mark recording step of, in parallel with the first data writing step, recording new write-position marks in the record area by the position mark recording beam; and a second data writing step of writing data between the new write-position marks with following the new write-position marks by the data recording beam.
摘要:
A peptide derivative having analgesic activity represented by the following Formula I: ##STR1## wherein Q represents D-Arg or L-Arg; and X represents for example NR.sup.6 --CHR.sup.7 R.sup.8. Typical compounds include H.sub.2 NC(NH)-Tyr-D-Arg-Phe-NHCH.sub.2 CH.sub.2 COOH and H.sub.2 NC(NH)-Tyr-D-Arg-Phe-NHCH.sub.2 CH.sub.2 CONH.sub.2.
摘要翻译:具有由下式I表示的止痛活性的肽衍生物:其中Q表示D-Arg或L-Arg; X表示例如NR 6 -CHR 7 R 8。 典型的化合物包括H2NC(NH)-Tyr-D-Arg-Phe-NHCH2CH2COOH和H2NC(NH)-Tyr-D-Arg-Phe-NHCH2CH2CONH2。
摘要:
A fabrication method of a multilayer optical recording medium having a plurality of recording layers, comprises a step of preparing an optical recording medium having at least one record area; a write-position mark generating step of recording write-position marks in the record area beforehand; a step of preparing an optical system including a common objective lens to focus a data recording beam and a position mark recording beam on different positions in a thickness direction of the record area; a first data writing step of writing data between the write-position marks with following the write-position marks by the data recording beam; a position mark recording step of, in parallel with the first data writing step, recording new write-position marks in the record area by the position mark recording beam; and a second data writing step of writing data between the new write-position marks with following the new write-position marks by the data recording beam.