Thiophene derivative

The breeding thing of the ancient leech is widely used and involves a wide range of fields.
In the field of medicine, the leech has been used for a long time. Ancient healers, observe its nature, explore its ability, and know that it can be used as medicine to treat various diseases. Cover the leech has the effect of promoting blood circulation and removing blood stasis, and clearing menstruation and collaterals. If people have blood stasis blockade, such as chest and abdomen pain, menstrual closure, etc., using the leech as an adjuvant medicine can often make the blood stasis dissipate, the meridians are unobstructed, and the pain can be solved. The doctor of the past said: "The nature of the leech is to enter the blood, break the blood stasis without hurting the new blood, and is a good medicine for removing blood stasis."
In the land of agriculture, the leech also has its It is born in wetlands and eats humus, which can loosen the soil and increase its fertility. Farmers know that if the soil is fertile, the crops will be lush. The insect leeches shuttle through the soil, making the soil loose, allowing air and water to enter, which is conducive to the growth of crop roots. For example, the "Agricultural Classic" says: "There are insect leeches in wetlands, the soil is loose and fat, and the crops are easy to grow."
In the ecological world, the insect leech is a part of the ecological chain. Although it is small, it is related to ecological balance. It is the bait for many organisms, maintaining the dependence between organisms. If the insect leech is lost, it will be used as a food for birds, beasts, insects and fish, or the number of animals and fish will change due to lack of food sources, resulting in ecological disorder. Therefore, the insect leech has contributed to ecological stability.
In the process of scientific research, the insect leech has also attracted the attention of scholars. Its unique physiological structure and survival habits are all materials for scientific research. Scholars use the study of insect leeches to explore the secrets of biological evolution and ecological adaptation, hoping to make gains and contribute to scientific progress.
From this perspective, the insect leech has important uses in medicine, agriculture, ecology, scientific research and many other fields, which cannot be underestimated.

There are three ways for the living of Xianzhi.
One of them is the method of harvesting the ingenuity of heaven and earth. On the top of the mountain, where the spiritual energy gathers, I look for the immortal grass Ruimu. Like the top of Taihua, there is a mushroom born in a cliff, surrounded by clouds and mists, and the essence of the sun and the moon often shines. When it is time, it is harvested with a purifying tool. At that time, the yang energy is first flourishing, and the grass contains the most vitality. After it is harvested, it is placed in a jade kettle, moistened by a spiritual spring, supplemented by the salary of peach wood, and slowly fried. During this period, you need to chant sutras and pray for blessings, so that the spiritual energy of heaven and earth does not escape. For seventy-seven or forty-nine days, you can obtain the essence of Xianzhi, and you can prolong your life and be light and healthy. < Choose the night of the full moon, in the place where yin and yang meet, such as the bank of Daze, set up an altar for sacrifice. The altar is made of bluestone, with a radius of nine meters, and the shape of gossip is placed on it. Sow the seeds of grass in the center of the altar, and water them with yin and yang. The yang water is taken from the river where the sun rises, and the yin water is obtained from the pool where the moon shines. Every noon, use cinnabar pen and script runes around the altar to nourish the seeds of grass. When the three leaves of grass are born, they are picked with gold scissors, and accompanied by a thousand-year-old Poria cocos, which are refined in a purple-gold furnace. The temperature of the furnace needs to be controlled by a formula. After three days, the furnace will be opened, and the obtained fairy grass can be clear to the mind and eyes, and it is extraordinary.
The third is the method of borrowing the five elements In a land where the five elements are complete, such as mountains and rivers, surrounded by water and wood, where fire and gold help each other. According to the orientation of the five elements, lay out the formation of gold, wood, water, fire and earth. Buried in the center are the seeds of grass, supported by the five elements of spirit. Green wood is planted in the east to attract wood qi; red fire is set in the south to attract fire; white gold is placed in the west to absorb gold qi; black water is injected in the north to nourish water; thick soil is piled in the center to cultivate soil virtue. After the reincarnation of the four seasons, the grass is ripe and harvested. When harvesting, you need to conform to the season. In spring, you can brush it with willow branches, in summer, you can lead the wind with lotus fans, in autumn, you can accompany it with chrysanthemums, and in winter, you can surround it with plum branches. After harvesting, place it in a jade box and wear it on your body
However, all these methods require sincerity and determination, following the way of heaven and earth, and following the principles of nature. If there is a slight mistake, it will fall short, and you must not be careless.

The physical and chemical properties of the things conceived by Fu Shouyao are particularly wonderful, which are related to the creation of yin and yang, and the principle of the five elements.
To observe the birth of all things, they all show the qi of heaven and earth, including the essence of yin and yang. Those who live a long life get the mellow qi of heaven and earth. Its quality is firm and condensed, and its nature is peaceful and not easy to change. It is like the genus of gold and stone. It is hidden in the deep mountains and does not rot over time. Because of its qi accumulation, it does not disperse, and its quality is dense and difficult to invade. For those who live, the qi they report is light and thin, or biased to one end of yin and yang, so they are impatient and brittle, and vulnerable to external evil spirits. Like morning dew, sunrise and Xi, because their qi dissipates and does not gather, the quality is weak and difficult to exist.
As for what is conceived, its formation also begins with the symmetry of yin and yang, and the condensation of essence and qi. Yang applies yin and receives it, like heaven and earth, and then the embryo begins to form. Its physical properties are tender in the early stage, such as the tender core containing spring, with softness as its nature, nourished by mother qi, and gradually formed. At this time, its quality is still tender, vulnerable to external disturbances, and it needs careful care. If the wind and rain blow the weak seedlings, a little carelessness will hurt its vitality.
And long, the physical properties gradually change, the yang energy gradually flourishes, and the quality gradually solidifies. The birth of wood is also from soft branches to dry, and its nature becomes stronger from compliance. In this process, it absorbs the nutrients of heaven and earth and fuses the elements of the five elements. The golden qi converges its shape, the wood qi expands its branches, the water qi nourishes its body, the fire energy rejuvenates its brilliance, and the earth qi thickens its foundation. The five elements are combined to form a complete nature.
The chemical properties of the things bred are also related to the creation of heaven and earth. Take plants and trees as an example, they contain all kinds of ingredients, which change their properties in case of water and fire. If the fire burns, the ingredients evaporate, carbonize, or turn into ashes, or leave essence; if soaked in water, the ingredients dissolve, seep out, or become concoctions, or decay. This is all due to the chemical changes between heaven and earth, so that the bred things have various uses.
From this perspective, the physical and chemical properties of the things conceived by Shouyao are actually the embodiment of the transformation of the five elements of yin and yang in heaven and earth. It follows the principles of nature and becomes such a wonderful state.

"Tiangong Kaiwu" is a scientific and technological work written by Song Yingxing in the Ming Dynasty. It responds to this question in classical Chinese. It needs to use the perspective and tone of the ancients, use simple and elegant words, and pay attention to the characteristics and laws of traditional industries when expounding. The following is the reply:
In the market conditions of various industries, the breeding of the serpent is in its own state.
In the industry of agricultural mulberry, the breeding of the serpent may be helpful for fertilizing the soil. Farmers, the fertility of the land is heavy, and the quality of the serpent, if it is well processed, it can be filled with fertile soil. At this time, the needs of the city care about the recognition of its fertilizer efficiency and the balance of prices. The state of the market changes, or in the countryside, the market and well, the farmers discuss with each other, and weigh the quantity and price, and talk more about its practical use, and seek its high quality and low price, so as to promote the prosperity of harvesting.
If it is in the field of medicine, the development of sea serpent is related to the pharmacology of the pharmacological effect. Doctors, pay attention to their nature and taste and return to the scriptures, and the work of healing diseases. It is also in the city, and the quality of the medicinal materials is tried. The pharmacist examines the quality of the medicinal materials, and distinguishes between the good and the bad. The good one must be expensive, because it can heal and save people when it is used in medicine. Moreover, doctors and drug merchants interact, often studying pharmacology, inquiring about its source, and testing its system. The scene of the city is rigorous and orderly, and it is important to human
As for the craftsmanship of carving, the serpent infestation can be used as a color material for decoration, or as a strange carving material. The craftsman seeks the beauty of its texture and color, and the difference in shape. In the city, viewers and collectors gather, and when it comes to its craftsmanship, they appreciate its uniqueness. The price depends on the rarity of the material and the refinement of the craftsmanship. Trading in the city is mostly for elegant people, or seeking treasures for collectors, or seeking entertainment for elegant people. The market situation is prosperous, but it also focuses on quality and elegance.
The business of merchants regards the serpent infestation as a commodity. It is found in all directions, whether it is available or not, depending on the needs of various places, transshipment and sales. In the city, observe the changes of the time, observe the market, and make profits as a business. When the city seeks prosperity, the price will be raised; if it seeks widowhood, the price will be depressed. The strategy of its management is related to the road of water and land, the system of taxation, the wide range of contacts, and the rise and fall of the city. It is all between planning and calculation.
All these industries, the scene of serpent scepter nurturing things in the city, vary according to the nature of their industries and the needs of people. However, they all follow the principle of supply and demand, the law of noble and lowly, and the economy and people's livelihood in the world, each has its own use, and each shows its own state of market conditions.

Fudan sand is a pregnant product, and its use is very important, and those who are careful should be careful.
The first step is to distinguish the true from the fake. In the city of Dan sand, the authenticity is mixed. The real one is pure in texture, bright in color, and warm in tentacles; the fake one is mostly mixed with other things, or the color is dim, or the texture is rough. If you don't investigate carefully, misuse of counterfeit products will not only have no effect, but will cause harm. In the past, there were doctors who did not distinguish the authenticity of Dan sand in detail, and used it to cure diseases. The patient took it, and the disease was not cured and the disease was aggravated. This sincerity should not be careless.
The next time, the dose will be clear. Although Dan sand has miraculous effects, it is also toxic. If used too much, it will lead to disaster. According to the severity of the disease and the strength of the patient, the dosage of dansa should be determined. If Meng Lang acts recklessly and throws a large dose, he may cause poison and hurt the viscera. If someone in Jin Dynasty hears that dansa can prolong the age, and takes an overdose on his own, causing his mind to be dizzy, his body is weak, and he regrets it too late.
Furthermore, the combination of medicines must be careful. Dansa and various medicines are combined, and there is a miracle of mutual growth and control. When matched with suitable medicines, it can increase the efficacy of medicine; when used with contradictory medicines, it is even more toxic. For example, dansa and realgar, both are poisonous. If they are not combined properly, the poison will be superimposed. Therefore, when combining medicines, we must study the pharmacology carefully and be cautious.
Also, the method of processing cannot be ignored. The raw use of dansa is particularly toxic, and it must be processed to reduce its poison. The ancient method of processing, or flying with water, or quenching with vinegar, has rules. If you follow the law, the toxicity of dansa can be reduced, and the efficacy of the medicine can be distinguished; if you go the other way, the poison is difficult to remove and the medicine is difficult to effect. In the Tang Dynasty, there were pharmaceutical practitioners who did not follow the method of processing, and the dansa made was used as medicine. After the patient took it, adverse reactions were frequent.
In short, dansa pregnancy, when used properly, can be a good medicine; if used carelessly, it is poisonous. For doctors and pharmaceutical practitioners, they should all be in awe and study carefully, so that dansa can be used to its fullest extent and avoid its harm.