Abstract: The present invention relates to a method of treating and/or preventing neuropathic pain, comprising administering calcitonin continuously. The present invention can provide a drug effective for the treatment of various neuropathic pains. Providing a drug having an action effective on neuropathic pain and having low toxicity. An agent for treating and/or preventing neuropathic pain comprising calcitonin, particularly elcatonin, as an active ingredient, wherein calcitonin is administered in an amount not altering serum calcium value, and use of calcitonin, particularly elcatonin, for producing an agent for treating and/or preventing neuropathic pain.

Abstract: The present invention provides a novel photosensitive compound having an azido group suitable for exposure to light of a short wavelength; a photosensitive resin containing the photosensitive compound; and a photosensitive composition containing the photosensitive compound or photosensitive resin. The photosensitive compound containing a photosensitive unit represented by formula (1): wherein R is selected from among the following groups, R: X is selected from among the following groups, X: and each of Y and Z represents a hydrogen atom, an alkyl group, an acetal-group-containing alkyl group, an aryl group, an aralkyl group, or a substituent containing a base-forming nitrogen atom, wherein at least one of R and X contains an azido group.

Abstract: The present invention provides a novel photosensitive compound having an azido group suitable for exposure to light of a short wavelength; a photosensitive resin containing the photosensitive compound; and a photosensitive composition containing the photosensitive compound or photosensitive resin.

Abstract: The invention provides a novel azidocinnamaldehyde compound which, when used as an intermediate for providing a photosensitive moiety of a photoresist, introduces a photosensitive moiety having high sensitivity and attaining high contrast between the exposed portion and the unexposed portion, and which per se can serve as a photosensitive moiety. The azidocinnamaldehyde compound is represented by formula(I): wherein R represents a lower alkyl group and Y represents hydrogen or a sulfonate salt group.

Abstract: The invention provides a novel azidocinnamaldehyde compound which, when used as an intermediate for providing a photosensitive moiety of a photoresist, introduces a photosensitive moiety having high sensitivity and attaining high contrast between the exposed portion and the unexposed portion, and which per se can serve as a photosensitive moiety.